Originally Posted by idontdrivericeieatit
...your answer to question is no the old two peice rear seal engines and the newer one peice rear seals engine require a different timing chain un less they have a universal type I dont know if they do...
Nope. The difference is whether the engine is running a factory type hydraulic roller cam/block/thrust plate. It uses a different bolt pattern than the flat tappet cammed engines and the clearance on the back side is different to clear everything. The linked to timing set will work for any flat tappet engine through about '91 when the Vortec began.