bluecamaroz28

Looking for a shortblock upgrade 402 or 408 to go with TFS 215 heads 64cc.

Already have the heads on a 346 short block. Will it be a good choice to go for 402/408 or should I stick to 383 because of compression or limitation of the heads?

Will be using 95 pump gas.

Brian Tooley Racing

iTrader: (13)

Bigger is better, here is a link to a 402 that a guy took his TFS 215's, cam and intake off a 346 and just put them on a 402, not big HP but the torque curve is fantastic, it gained around 100 RWTQ at 3500 rpm and still made over 500RWHP.

https://ls1tech.com/forums/showthrea...hlight=tfs+215

bluecamaroz28

Thanks. So, 402 will work fine with TFS215 at 11.6CR.

bluecamaroz28

On second thought and since bigger is better how is 418cid L92 with those heads and fast 90/90 since it's only $250 more than the 402 LS2.

bluecamaroz28

Is 418L92 a good choice with TFS215 over 402/408 short block?