With a range of 77 cc to 46 cc, you should have a variety of compression ratios available for your simple mill job. Most Olds folks seem to prefer theC heads for their added performance and better flow. Horsepower Secrets by Chris Hemer, Musclecar Review How to make a stock-looking engine run like the wind. The cylinder head is machined so that the stainless .041-inch-diameter O-ring protrudes .015 inch up from the deck, and the corresponding .040- to .060-inch-wide receiver groove is machined at the same depth into the block. Sweet, Growing Peppers in Your Garden: Tips, Hardening Off and Soil Mix, Growing peppers is a great way to spice up your garden. WebEdelbrock RPM Olds 455 Head Porting HeavyOlds 268 subscribers 642K views 15 years ago The scariest thing I ever did was port a set of new Edelbrock aluminum cylinder heads. Includes port matching and blending of the plenum and its dividers. For those racers looking for a head with 500+hp potential, this is it! Competition-ready heads feature fully CNC machined combustion chambers and blended seats for increased air flow and well as revised exhaust valve angles for larger intake valves. Multi-layer steel gaskets made by Cometic are the ultimate in combustion sealing. CUSTOM ENGINEERED GUIDEPLATES FOR THE ABSOLUTE BEST ALIGNMENT. You must choose UPS Ground to help ensure your order arrives before Christmas. Stage V Competition: Standard valve angle, conventional style heads, Stage V Ultra-Competition: altered valve angle, competition style heads. The most desirable small-block Olds cylinder heads are the number-6 and number-7 castings. So remember: J is for junk. Pricing is for traditional V-8 cylinder head pairs. Out of these cookies, the cookies that are categorized as necessary are stored on your browser as they are as essential for the working of basic functionalities of the website. The same goes for the intake and exhaust ports on the muscle-car-era castings. All of the small-block combustion chambers have roughly the same shape, but vary in volume. 1979 2023 Speedmaster. We then basically put those dimensions into our cylinder head, and then worked around the port and chamber dimensions to make everything fit within in Oldsmobile platform, he says. WebOLDSMOBILE ALUMINUM HEADS 330,350,403,400,425,455. There are a number of head gaskets for the Oldsmobile engine. At my door for 2400$ Canukistan dollars (1830 us). Speedmaster cylinder heads offer great performance for less than it would cost to rebuild an old set. Whats The Reason Enthusiasts Cant Get, Full Factory Tour: How Edelbrock Makes Its Cast Aluminum, High-Performance Racing Fasteners: How ARP Fasteners Are, Dobbins Clocks First 3-Second Mountain Motor Pro Stock, BirdDoc: The Six-Speed GT500 Record Holder And Its High Flying, Video: Installation Time-Lapse Of The Fresh New 3M Wrap On, Drag Pak Racer AJ Berge To Fly Iconic RAMCHARGERS Colors In 2023, 2003 Cobra Runs 8-Second Pass With Whipple, IRS, And A T-56, Moser Performance Girdles Add Rearend Strength To Your Third-Member, New Season Of Street Outlaws: Fastest in America Debuts March 13, Retro Injection: Modern Fuel Injector Tech Gives Us Room To Grow, How We Fixed The Unsightly Wheel Gap And Stance On Our 2010 Camaro, Lizzy Musi Preparing For Street Outlaws: No Prep Kings Season 6. EFVU(eufv7GWgw8HXhx)9IYiy*:JZjz m !1AQa"q2#BRbr3$4CS%cs5DT Includes port matching and blending of the plenum and its dividers. Get Heads Shop reviews, rating, hours, phone number, directions and more. The Edelbrock 455 Olds manifold bolts right on. Tomato Varieties: From Determinate to Indeterminate & Dark to Yellow Research Your Options Before Planting! These gaskets are pretty much available in any thickness and bore size when you custom-order them. This creates additional horsepower and torque. WebCompetition Components 4406 Van Atta Rd. With the right seat cutters, the bowl is larger and the bowl shape allows a better transition for the air/fuel mixture to exit the valve, thus increasing available horsepower. WebThe Olds head can gain about 80% of its total potential flow by matching ports on intake and exhaust side (yes grind out those headers), removing A.I.R. Hopefully somewhat impressive or at least an improvement over the small valve heads I pulled off. These cookies do not store any personal information. 0000363215 00000 n
Just bolt on a set of complete heads for instant power - cos we've done all the hard work for you! 0000000833 00000 n
To learn more, view our, For the ultimate in performance, our E-CNC cylinder heads are the answer. This design allows you to select a wide array of thicknesses for the application. 0000001449 00000 n
Seen here are two angles of the intake port. Putting a higher flow head with 220cc runners on a relatively stock 350 would be going in the wrong direction. Race Recondition: $350 Complete recondition of cylinder heads with a Serdi cut valve job, surface mill, cleaning, inspection, re-assembly and new valve seals installed. The factory Olds cylinder head uses a 6-degree valve angle in an inline arrangement, and his decision to keep the new design to where it would work for both street and race-type applications presented plenty of challenges. // Ported. If you want a free port job on your small-block Olds heads, put the die grinder down. When milling to reduce the combustion-chamber volume, it takes approximately .006 inch of deck surface removed per cubic centimeter of reduced combustion-chamber volume. THIS PACKAGE INCLUDES: 1 PAIR OF ROCKET RACING CYLINDER HEADS. The first 7,6 & 5 second Top Fuel runs and the first 200 mph runs in Top Gas, Top Fuel, Injected Fuel, Fuel Altered were all accomplished using Mondello cylinder heads and Don Garlits set most of these records, making Mondello the most notable, historically recognized heads. SpeedmasterTM kits bring together everything you need. s !1AQa"q2B#R3b$r%C4Scs5D'6Tdt& Even at that small 46-cc level, the cylinder head seemed to have adequate deck thickness for the 640 hp that the particular engine produced. We designed the cylinder head on paper for a max-effort race application, but what weve done is detuned it so that it works well for the street guy. This, Affordable Street Performance Applications, Select Performer Heads are 50-States Legal, Next-Level Street Performance Applications, High-Performance Street & Light Race Applications, Available in CNC Ported for Maximum HP/TQ, Raised Runners, Revised Chambers and Relocated Valves, Available with original Edelbrock script or block logo design, Available with raised-roof combustion chamber design for high-lift cams, Manufactured by the company that pioneered Flathead performance, The only heads designed specifically to accommodate almost any CNC port configuration, Hot Isostatic Pressing castings available for increased strength and density, Cast in the USA at Edelbrocks state-of-the-art foundry. By continuing to use our site, you agree to their use. We'll be back on Monday, January 3. When BTR performs this operation, the O-ring and receiver grooves are located off of the cylinder head and block dowel pins, and are machined on a Cincinnati CNC machine, which makes it easy to get perfect. These heads are capable of over 400 cfm airflow. A Heads Shop is located at 4101 Bergen Turnpike, North Bergen, NJ 07047, A Heads Shop is open:Saturday: 8:00 AM - 8:00 AM Sunday: Closed Monday: 8:00 AM - 6:00 PM Tuesday: 8:00 AM - 6:00 PM Wednesday: 8:00 AM - 8:00 AM Thursday: 8:00 AM - 8:00 AM Friday: 8:00 AM - 8:00 AM. Speedmaster cylinder heads feature as-cast ports in both alloy and cast iron and are designed for entry-level street/strip performance applications operating in the idle-to-6500 rpm range. WebHeads Shop at 4101 Bergen Turnpike, North Bergen, NJ 07047. Makes buying a bare set less tempting. Cookie Policy. From basic "Hot-Rod" mild cylinder head porting for that street and strip machine to all out class competition machines where every horsepower matters, you're in good hands with CFM Performance! WebMondello Performance | Performance Oldsmobile Parts and Engines Molding two designs into one proved more challenging than expected, but hard work and solid engineering principles made the Z head a reality. The debate is further complicated by the fact that some tomato varieties can be either determinate or indeterminate depending on their growing conditions. As with any major engineering project, it wasnt so simple as just measuring the dimensions and transferring them over to a new casting. Whether youre growing hot or sweet varieties, there are some important tips for success. Stage III: See below for pricing Complements any head porting for maximum horsepower. The oldest castings (used on the 1965 400 to 425-ci engines) have the letter A, and the latest big-block production castings have the letter J. The Other 350s: Oldsmobile by Marlan Davis, Car Craft The Olds 350s design specs offer ample performance potential. The after numbers look close to what everyone says these head flow, interesting. Big race port is 300cc and hits 390 cfm. All rights reserved. JavaScript is disabled. From there, Oldsmobile engineers took their shot at creating the best possible drag race head, and introduced the Oldsmobile Pro Stock head (PN 24502585). Any time you force air to flow along a particular path, the total flow almost certainly drops. I only use these on cast-iron head engines. All Steel Roller-Tip Adjustable Rocker Arm Systems, All Steel Roller-Tip Adjustable Rocker Arm Systems (Cast Iron Applications), Non-Roller Adjustable Rocker Systems (Cast Iron Applications). They already have induction hardened seats and flow almost as good as C's. First of all, I'm just a homegamer in the Oldsmobile cylinder head department. Today, Chevrolet performance cylinder heads still utilize the identical combustion chamber, which Joe designed in the early 1960s known as the Posi-Flow chamber. This ensures that the valve free-drop and combustion-chamber depth is even. Filling the exhaust heat crossovers can never hurt. WebOldsmobile Cylinder Head Porting larger image We can machine, install upgraded components and port your Oldsmobile cylinder heads. Rocker arms and other supplemental parts increase the price as well. Dont ever let anyone tell you that you dont need a receiver groove in these copper head gasket/O-ring applications. You have a direct, line of sight to the valve on both the intake and exhaust side. Submit your email to receive the latest stories and expert advice For the racing weve done, there is no cylinder head out there that was worth anything, he explains. Includes bowls and intake opening port match.
Intake and 1.680 in. There is not a better method of sealing combustion than the copper head gasket with the proper O-ring and receiver grooves machined into the head and block. trailer
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Comes completely assembled with roller cam springs speced out Includes the bowls, port match, and profiling of the combustion chambers. These castings are undesirable for performance use. For instructions on how to enable cookies, please see the help section of your browser. Very happy with the power made on the dyno with the Edelbrock Carbs. We use encrypted SSL security to ensure that your credit card information is 100% protected. Oldsmobile Top End Kits; Oldsmobile Aluminum heads; Oldsmobile Intake and fuel systems; Oldsmobile rotating systems; Camshafts and lifter sets; Oldsmobile roller rockers and pushrods; It is also known as Radiator Charlies Mortgage Lifter, after Charles Byles (1890-1976), an auto mechanic, This website uses cookies for functionality, analytics and advertising purposes as described in our, http://www.xsrpms.com/dragnet/rides/napier/index.html. With 2021 in full swing, many gardeners are looking for new varieties of plants to grow. They must line up perfectly to each other. I plan on finding a GT-40 upper and lower intake. Combustion Chamber, Exhaust and Intake Ports all fully CNC machined for better flow. In order to shop on this Web store, you must have JavaScript enabled. I wouldnt say these gaskets are the best choice for aluminum heads. 7/16"CAN BE USED WITH NO ISSUES AND DRILLED FOR 3/8" PUSHRODS. WebPro-Port Raw heads are semi-machined with finished accessory, intake and exhaust flange bosses. Just choose your level of performance. When they do fail in these applications, it usually ruins something like the block or the cylinder head. This factory iron big-block A cylinder head has the largest ports I have seen. To learn more, view our If you get a set of roller rockers that don't require any machine work to install, you can put them on If you bolt a set of big-block heads on a small-block, its like bolting on a ported head. BEST OF ALL RAISED AND RELOCATED, SYMMETRICAL PORTS. WebStage II: $500 Suggested porting for most intakes. 32806 407-855-9559 rocketranch@msn.com. For the best experience on our site, be sure to turn on Javascript in your browser. The Oldsmobile V-8 engine is not dead, says engine builder Brad Wise of Wise Performance Engineering. If you need it to be more exact, you have to check multiple times, as the head is shaved. CNC HEADS ARE AVAILABLE FULLY CNC PORTED AT AN ADDITIONAL COST. I have seen many heads that have been milled unevenly, which throws everything off. napier 948 243 1 Jan 22, 2020 #3 nice looking ride. Available with 2 different programs, stock valve or our big valve race version. For the best experience on our site, be sure to turn on Javascript in your browser. I have seen very slight water seepage on engines using aluminum heads. Older Post 2023 CarTechBooks. Speedmaster crate engines have become a huge success all over the world. The store will not work correctly in the case when cookies are disabled. These guys have alot of experience and helpful and cheap, Nirmal is a good guy with alit of experience, Worst experience nasty attitude doesn't take responsibility he has had my motor for 8 months for 30 over bore hot tank and flycutting pistons had to return motor 3 times found metal shavings in motor motor was dirty and stay away from nirmal stay away. Until then, my serious engines are sealed by this method. When performing the O-ring and receiver-groove operation, location of the O-ring and receiver groove is absolutely important. United States - USD ($), Intake Manifolds, Fuel Injected Components, Superchargers, Centrifugal Style Head Units, Differential Carrier Bearing Adjusting Nuts, Differential Pinion Bearing Spacers and Sleeves, Differential Spanners and Side Adjuster Tools, Driveshafts, Drive Chains, Couplers & Yokes, Automatic Transmission Brackets and Levers, Automatic Transmission Filters, Direct Fit, Automatic Transmission Rebuild Components, Automatic Transmission Trans-Brake Solenoids, Manual Transmission Replacement Components, Manual Transmission Throwout Bearing Retainers, Hoods, Tops, Body Panels, Parts & Sections. 2023 Power Automedia. Oldsmobile heads are available with OEM sparkplug location. Heads are available with bronze guides and iron seats, with a beryllium-copper seat available for max-effort applications. Includes a multi-angle or radius Serdi cut valve job on both heads (seat cutting only). Authorized dealer for all Holley products, Comp, Erson, Lunati cams, Mahle and RaceTec pistons. After lots of trial and error, plenty of burned welding wire, measuring, testing, fitting, and hair-pulling, he finally settled on dimensions that made sense for the Olds platform, and would provide an opportunity for both street and race customers to step into the 21st century in terms of performance and airflow capability. When were done they flow just a bit better than your best numbers and work really well. WebAt the end of the day, pocket porting may not produce the fastest-looking set of heads or the most photogenic, but the results can be very satisfying. Rule Number 2: Let the air move the way it wants to, not the way you think it should. So, which heads are the best performers, and how can you spot them? Speedmaster line of EFI systems is all you need when deciding to upgrade your engine to modern electronic fuel injection. $3795. 1 PAIR OF ROCKET RACING CYLINDER HEADS. This car is called the Hefty HEMI and will compete in the NMCA - Nostalgia Super Stock class! Throttle response and power range from 1500 - 6500 RPM. Rebuilding Your First Engine by Joe Mondello This is a six part article with step-by-step instructions. The oldest castings (used on the 1965 400 to 425-ci engines) have the letter A, and the latest big-block production castings have the letter J. The series ended there. 455 Olds to Go by Marlan Davis, Car Craft Joe Mondello builds a 500-horse 455 thats the Torque of the town. WebCompetition Components Now offers CNC Ported Cylinder heads for Oldsmobile Engines. With 70cc chambers built into the heads from the beginning, the heads handle street performance, but Wise explains that users looking to use them in more aggressive combinations can knock down the chamber dimension by decking the cylinder head and build some compression into the engine. Side & Ream Head Bolt Holes, Finishing of Custom Unfinished Race Block, Machine / Align Bore for Big Ford Cam Bearings, Balancing V-8 Assemblies (Heavy Metal to Balance Additional Time & Material), Intake Match, Bowl Blend, Polish Chamber& Exhaust Port (Pr). WebEdelbrock Oldsmobile Heads. Edelbrock recommends a Champion plug in their info for the head. Stage III: $850 Our "strip" port job - the best bang for the buck. The nice job on these C heads came by pouring in melted aluminum from the port side and then porting the bowl properly. SpeedmasterTM cylinder heads offer improved power throughout the rpm range for greater throttle response and top-end horsepower. Contact us for your application and pricing. Heads Shop is located at 4101 Bergen Turnpike in North Bergen, New Jersey 07047. You also have the option to opt-out of these cookies. WebShop Oldsmobile vehicles in Rahway, NJ for sale at Cars.com. EACH SET OF HEADS IS BUILT TO YOUR SPECIFIC ENGINE. The heads are offered in four different configurations, from a basic CNC-chamber, CNC intake/exhaust port design that flows 340 cfm on the companys Superflow SF600 flowbench all the way up to the big-dog 400-plus cfm max-effort cylinder head designed for all-out racing applications. One such individual is Brad Wise of Wise Performance Engineering. Speedmasters 6-71 Street Supercharger kits can give you 45-55 percent more streetable power. For instructions on how to enable JavaScript, please see the help section of your browser. no cnc job or significant port work? Complete w/ Brodix Severe Duty 2.375 2 Brodix Race Rite 365 -385RRX square port complete heads. The heads are offered in four different configurations, from a basic CNC-chamber, CNC intake/exhaust port design that flows 340 cfm on the companys Superflow SF600 flowbench all the way up to the big-dog 400-plus cfm max-effort cylinder head designed for all-out racing applications. But what can we do to help? There is a spacer system to make everything work with a big-block Olds. By continuing to use our site, you agree to their use. Stage II: $550 Our "street/strip" port job - for those on a budget. As well as port matching. hump in the exhaust port, clean up of the bowl area behind the valve seat, and tear Now, Wise Performance Engineering has developed the Oldsmobile Z cylinder head, based on hundreds of hours of research and development time. Dont stress out over the finish; just leave no rough cuts. ALL ROCKET RACING CYLINDER HEADS ARE BUILT PER CUSTOMER APPLICATION.PLEASE CALL TO ORDER. Olds Oldsmobile 1969 BareC Heads / 455 / XLNT! Bulletproof Big Blocks by Chris Hemer, Popular Hot Rodding If your 455 Olds needs a booster shot, then its time to call The Doctor. But opting out of some of these cookies may have an effect on your browsing experience. The famous C head is well known for being the best factory iron cylinder head to use, but I have not found that to be the case. I had those sitting here, and took a look at the chamber design and the shape. 1 ROCKET Rated 5.00 out of 5 $ Add to cart $ 995.00 Add to cart; Home; Parts. Some of our popular builds are: Edelbrock Performer RPM Olds Edelbrock Performer RPM (Stock & Super Stock) Contact Us The deck thickness and stiffness required on the cylinder heads has to be determined according to the amount of horsepower the engine can produce. You do. It is the same method used by 5,000+-hp NHRA Top Fuel cars. So give your heads a check with a set of vernier calipers to make sure that the deck surfaces are parallel to the valve-cover rail and the same as each other. In the early 1950s, before Joe was 17 years old, he had already ported & relieved more than 50 Ford flat head blocks for the finest engine builders of that era. In 1951, Joe was racing at airports and drag strips throughout Southern California. SPRINGS,LOCKS, RETAINERS, STUDS,GUIDEPLATES, AND VALVES. All rights reserved. 365-385 ports. @ 213 mph at the 1969 Indy U.S. Nationals. Theres enough material in and around the deck to handle that kind of power, he explains. cool, thanks for sharing. When a Top Fuel car uses a method other than this to seal combustion pressure, Ill try it. Assembly has been carried out at the Speedmasters TDS Department by the Head differential technician. 0000000680 00000 n
Our Cylinder Heads are built and assembled in-house at our facility in California. The 2 columns are a before and after bowl porting/blending. 75 mm throttle body, A 90 mm mass, 24 or 30 lb injectors and a chip and tune after. WebWhile your engine is apart we will make suggestions on increasing horsepower and torque. All rights reserved. 403 Olds Engine Building by Cam Benty, Popular Hot Rodding More tips on a 403 buildup. Exhaust. so, these are Pro Comps that got cleaned up a little? Includes port matching. 0000001331 00000 n
During the early 70s, this winning father-son combination went to work at the Parker Dam 9 hour enduro, winning the Jet Boat class with an Olds 455 in 1972 and in 1975 & 1976, back to back wins with a 500 c.i.d. The cylinder head works by allowing the air-fuel mixture to enter one valve and the exhaust gas to exit the other. The Oldsmobile factory-production small-block cylinder heads are identified by a number cast into the front lower portion of the head next to the number-1 and number-8 cylinders. Copper head gaskets get a bad rap from people, mostly because the O-ring job was performed incorrectly, allowing coolant into the engine. They require that the decks be flat and smooth. The famed Mondello-Matsubara Blown Fuel Altered won two National Events in the 1960s. CNC Ported heads eliminate human error and variation from port to port. They did change quite a bit in the later smog engine years. Virtually every set of Procomps I sell/install get 2.125 intakes because the bowls are more conducive to that valve size. He has given over 50 years of technology & hands on experience to the sport of drag racing. Corteco makes some high-quality gaskets. I dont have time to figure out why some companys product failed, especially when there is something else I can get my hands on that performs reliably. Fully cnc'd. The factory iron small-block cylinder head has some very small intake ports and is very plain to see. Our office will be closed December 31. If you have him do a full port job, you will not be disappointed. We will safeguard your e-mail and only send content you request. porting and polishing of the inside of the intake manifold. 1970 Olds Cutlass S,9.5 to 1 358,Gen 3 Edelbrock,400Hp/Tq,Mahle 1mm pistons, Molnar rods,ARP,330 forged crank, 218/218 .541/.541 112 LSA roller cam, shorty headers,2.5" duals,X pipe, Superturbo's,2350 stall,TH2004R,3.08 Type "O". We designed this stuff a few years ago, and just recently put them into production and have had some great results out of them. The Sportsman Series offer high horsepower and excellent torque. " ?~`?|-wR]6SK0[.@#Y8FljVlUU J@L>} 8 A_'kN}JMx!M*~_YkkRaKA;CQ=U ?1Y-o)K ?YyFAiW7WTI *" 2D?ks,P)k!PCo* \?+0%/rD_Bt!e{IlI!|U8?!> 8z~Uj^[#2P#^W$*UWQ -TeE9\ Some of our popular builds are: Edelbrock Performer RPM Olds Edelbrock Performer RPM (Stock & Super Stock) Contact Us NO WATER BY PORTS SO PORTING IS INFINITE.
U We had T&D design the rocker system for these. Head Build Kits include the following: Intake Valves, Exhaust Valves, Valve Spring Retainers, Valve Locks, Valve Springs, Valve Stem Seals, and Valve Spring Locators. Project Murderous Overkill by Christian Hazel, JP Magazine The Mondello Monster. I've blown my wallet on e-brocks in the past, so we'll see if I'm disappointed this summer. Using only high-grade components, our team of machinists and engineers with 40+ years experience get the job done with quick turnaround time and proven precision and assured quality control. They worked like a charm. And if the photos hes sent us of the brand-new Oldsmobile aluminum cylinder head design his company has been working on are any indication, the opposite is exactly the case. 0000369682 00000 n
It'll pass anything except a gas station :-). The heads are making really good power. 440 Olds Stroker Small Block Photos by Chris Hemer, Popular Hot Rodding The strong arm solution for weak-kneed 350s. Factory trained on AEM and Holley EFI systems. CNC combustion chambers offer superior control over flame travel and quench area. Get big-block heads, mill the deck surface so you can get the combustion chamber volume, and presto! As well as port matching. ROLLER CAMSHAFT ..Call for pricing, SOLID ROLLER CAMSHAFT Call for pricing, CNC PORTED CYLINDER HEADSCall for pricing. Many variables will be included in your engines blueprinting process such as; type of camshaft, crankshaft, cylinder head porting and polishing, multi angle valve jobs, balancing, intake (port matching), pistons etc. Operating within the idle-5500 rpm range - they fit the bill perfectly. They include almost everything you need to make serious horsepower. For the more serious street application, the SuperStreet Series boasts high quality intake and exhaust valves and valve springs suited for daily drivers and tough street machines. Includes complete reshaping of the intake and exhaust ports. Tests performed same day at delta P= 28" Hg Edelbrock heads ported by RR flow virtually identical to those ported by M at valve lift above 0.400", but at 0.200" lift, M porting yields 20% better flow than R porting. Joe celebrated over 40 years in the high performance manufacturing industry. Description Known for giving you the optimal airflow combination for maximum engine performance. Includes full Extremely aggressive , suited for next level all-out competition. WebOldsmobile Cylinder Head Porting larger image We can machine, install upgraded components and port your Oldsmobile cylinder heads. Stage IV: $1000 Our "hot rod" port job- for nitrous and forced induction applications. The big-block and diesel engine blocks also used a 3.000-inch main bearing diameter over the small-blocks main bearing dimension of 2.500-inch. JFIF H H Adobe d@ Heads come with 5 angle valve job. And a very good head porter. Head or block O-ringing: Starting at $250, Address: 1035 Front Royal Dr. Indianapolis, IN 46227. This category only includes cookies that ensures basic functionalities and security features of the website. It looks like you could go huge on the exhaust ports, but I know that sometimes going too big actually kills velocity. The best head gasket in 98 percent of high-performance Oldsmobile applications is the Cometic MLS head gasket (multi-layer steel). Continuing use of the site implies consent. I'm sure I'll get flamed for not using e-brocks anyways.. These heads were a good bang for the buck with room to grow vs the cam that I am running. Standard valve sizes are 2.072 in. I sent the head out to them and had them build their complete shaft-style rocker system on it. Stage III: See below for pricing complements any head porting for maximum horsepower. In the 1960s, Joe also worked part time for Carroll Shelby building the performance heads and engines that won the Le Mans Grand Prix. Not a lot of flow yet as there's no real work in them yet They're going on a 461, cn crank, stock rods, arp head, rod, main bolts.
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