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4 maj 2023 · Pontiac 6.6L valve springs will have likely lost quite a bit of their action, especially if you have a 400 V8 with a high-lift camshaft. In this guide, we cover the Pontiac 400 engine. Learn about Pontiac 6.6L V8 specs, performance upgrades and common problems.
15 sty 2017 · The block is a 400 cui 6.6 Pontiac (not 403 Olds), the casting number is 4819888 and "293642 YJ" is stamped on the machined plate in front of the right cylinder bank. I do not belive the car has been stroked but will ask the shop to check on the piston travel to make sure.
See Chart Below for actual codes. Engine Unit Number. The Engine Unit Number is located under the passenger-side cylinder head just above the Engine Code. It is 6 or 7 digits long and represents the sequential production number of the engine. Block Casting Number
Find PONTIAC 6.6L/400 Pontiac V8 Engines & Components and get Free Shipping on Orders Over $109 at Summit Racing!
14 cze 2016 · Paul Spotts responds:The W72 option in '78-which carried over to the four-speed 400 T/As and Formulas in '79-actually had a completely different cylinder block than other Pontiac 400s of the day ...
Pontiac 400 V8 Engine. The Pontiac 400 6.6 Liter engine was first introduced in 1967. This version of the Pontiac V8 engine was used in the GTO, Firebird, and the Trans-Am Firebird. The 400 was inspired by the Pontiac 389 V8 and proved to be the last Pontiac engine with closed chambered heads.
21 mar 2024 · By following the recommended torque specs and service intervals, you can ensure the longevity and optimal performance of your Pontiac 400 engine. Always consult the appropriate service manual or a trusted mechanic for specific details and guidance when working on your engine.
