Printable View
Has anyone maid a ls 6.0 iron block into a 421ci for boost I have the block bored .030 and have a 4.125 crank and 6.125 rods and custom pistons maid for it with a 106mm turbo. Been reading and seen where people are saying going to have oil problems and it's not recommended for boost. And now I'm second guessing my build. Any info will help I really don't want to go a different route cuz I've done spent a lot of money. Sorry if my spelling is bad..
Only thing I have heard is that the side loads will be pretty severe with that much stroke.
I'm just goin to put it all togather and rotate it and see what happens
I personally would never use that combo with a standard sleeve block
The 4" stroke has issues and that will just add more. If you want to use that get a longer skirt in that block or use a LSX block
Depending on goal you don't need huge cubes and only wanting 800- 900 the stock motor is plenty