|07-31-2012 05:40 PM|
Thanks for the replies.
|07-30-2012 08:42 AM|
I don't recall what year the 4.3L V6 got a balance shaft. But basically you want to replace like w/like as closely as needed. By that I mean don't go '96-up, else the intake surely will not fit and there's no way to make it fit.
And if you go back to '85, the engine had a 2-piece rear main seal and in '85-'86 the cam was a flat tappet. But '87 through '94 engines should work even though the cam specs weren't identical; the amount of vacuum they made was sufficient for the stock ECM to handle. Edelbrock sells a TBI performance intake for those years, p/n 3713.
|07-29-2012 07:42 PM|
|va4cqd||some W engines use a balance shaft so the Z intake may not fit|
|07-29-2012 07:40 PM|
|07-19-2012 12:58 PM|
|va4cqd||87 to 95 should bolt right in and work correctly with the TBI. you can probably find one from an S10 or astro van easier then one from a fullsize|
|07-18-2012 02:40 PM|
1993 Chev 1500 4.3Z
I bought this truck new and it now has 266+K on it and the engine is running very rough when it runs at all. I know cylinder 2 has 60 lbs and the rest are at 120-125.
I would like to swap out the engine for another 4.3 from another year if that is possible. What are my options?