I was planning on building a ls2 but money has been a little bit of an issue as I am in the process of a move. I already have a ls1 block with AFR 225 (1660) heads 63cc. These heads have upgraded Ferrea valves and Manley dual springs and titanium retainers, 102 intake/tb, 100 mm maf and my question is would this be over kill for a ls1? Not sure on ci yet but would like some input on that. I still need to decide on a cam and this motor either way will be forged. I appreciate any input

 

I'm not worried about hp numbers but I would like to build a nasty street car with potential of going low 11s high 10s on motor. I also have a plate kit going on the car but its going to be a little girl shot of 100-150 and no more

 

the 225 runner would still work fine however AFR intends for them to be used on slightly larger cube engines. If you cant afford a 4" stroker kit then the key
to making it work @ 346 or 347 will be to mill them and use thinner .040
Cometic gaskets to get 11 plus to 1 compression and stay a bit conservative
with the camshaft to build good cylinder pressure (torque)...228-232 range

 

a stroked ls1 would be best with them heads and more cubes than ls2....some to consider....good luck with project....rob