Our engines use non adjustable rocker arms, so pushrod length is import to lifter preload, which is important for performance. Incorrect preload does change power on the dyno, or in extreme cases, the ability to run well or at all.
There are 2 options for the adjustable pushrods, a shorter option custom made for wot-tech for use on 3100/3400/3500 LX9 engines. These measure below 5.700", which is very short for an automotive engine. The other option is a Comp pushrod that measures...
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Using an adjustable pushrod for lifter preload
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Gen 2 to Gen 3 Top-End Swap
A Gen 2 to Gen 3 top end swap is a good way to help wake up an engine in a 87-94 MFPI-equipped vehicle. This article is kind of old, but there are still people out there doing it, so might as well post it. It describes what is needed to perform the swap, as well as why it is beneficial.
If you have questions on your own swap, check out the forums for other member experiences, as well as to post your own questions.
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