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This photo shows where the block casting number and date code are located. The date code, L017, breaks down as follows: December 01, 1967. The block casting number, 9790071, is for a 1968-1969 400 engine.
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.
19 sie 2022 · Use the part (engine block or cylinder head) date code to identify the model year. On engine blocks, this code is usually located on the top center of the block, near the distributor. On cylinder heads, it can be "inside" (under the rocker cover) or on the outside.
pontiac engine decoder year code c/i hp tran carb car misc 1962 13b 421 3 m 2 x 4 full super duty 1962 13u 421 4 m 2 x 4 full super duty ... 1967 xm 400 255 1967 wf 400 255 a 2 ac 1967 wm 400 255 m 2 emmisions 1967 wn 400 255 m 2 emmisions 1967 yu 400 255 a 2 emm 1967 yv 400 255 a 2 ac ...
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.
26 paź 2023 · Together with the casting code and casting date you can determine where what the engine is. Starting in 1965 Pontiac began using a 2 digit letter code. As a general rule, “W” coded blocks are manual transmission and “Y” coded blocks are automatics.
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 ...
