Crawlin Z

iTrader: (2)

I'm considering what LS based combo I need/want for my goals. The car is a Fox body Mustang that weighs 2900 currently w/ a cage, almost full interior, and an all iron smallblock ford. I'm going to be doing about 100# reduction on the roller when the combo is switched. How reliable are stock LS2/L92/Lq9 internals regarding HP/RPM? I'm going to be carbureted and using L92 heads, manual trans. I'm curious as to what RPM and HP they can be pushed to, or if I upgrade pistons/rods, how good are the factory cranks? They are nodular iron, right? Thanks for any info.

Richard@WCCH

iTrader: (3)

The factory cranks are holding up pretty well. Replace the pistons and rods. The stock oiling system is good for making power to 6500 safely. Sustained high rpm setups (+7000)should use a dry sump system for oil control.

Good luck with your swap.

Richard