Reg gen one heads converted over for lt1

[Suicidal racing]

Originally Posted by KLAB

This is interesting since I dont have LT1 heads for my LT1 and I have a surplus of sbc heads. Not saying I'm gonna hack up a set of my sbc heads I can use on any of my sbc motors but what did you do in the first post pics? Have the oil return hole welded and a new one driller? Just in case of emergency!! But I have 3 4 bolt sbc's that I could build with various sets of heads so I'd rather build a 4bolt sbc with sbc heads than ruin my sbc heads to put on a poopy 2bolt LT1 in a poopy 4th gen. Problem is the cowl. Cant put an sbc in my 95 efficiently So I'd lean towards bolt on only LT1 of all out LQ9/T56 swap for my 4th gen. But For my 2nd gen, or any other car I may ever get my hands on, I'd def drop a beefy sbc in it.

and ok now my rant is over.

yes you have to have new oil return holes put in.old ones welded,steam hole taped and drilled,water pass opend up an so on.

the lt1 block is good for another 400hp or so when built right..thats both 2 bolt main blocks converted to splayed 4 bolt mains..a 2 bolt main block can take 800hp lt1 wise..its being done right now..max i ever did with a gen 1 2 bolt block was 750hp..both the lt1 and my old one used stock rods with bolts and stock cranks an where/are n2o deals

gm shit can take power..it aint no ford shit where there 302 blocks split at 550hp

if you have a cowl hood on your car you could fit a reg carbed sbc in it and ive seen bbc in them with 2" cowl also..just depends on the intake an carb combo really.

[black heartbeat]

right now I'm most interested in just a gen 1 sbc head swap like you are doing because my ported stockers don't flow worth a shit and i think that could be an interesting route. even AI trickflows only flow at max lift around 295 to 300

[Suicidal racing]

Look into rhs or hit up dr j's peromance for some profilers new profiled heads..both are 300cfm heads out the box for 1400-1500..then ad in the conversion cost.