sbc gen 1 heads and lt1 heads are all 23 degree heads stock..only changes was the reverse cooling and intake bolt pattern head wise.Thats it they are nothing special at all..
On intakes no out the box intake will match up with head runners direct..thats why port matching is done.
Also intake wise the bolt angle is different also..the bolts are more straight up vs a gen 1 which are more at a angle..
heres some pics to help get the idea.
washer angle to correct the problem..if i remember right angle is like 26 or 27 degree
Bolt hole difference,As you see the corners are the same the second set in are about a 1/4 diff and you could just slot the intake.The 4 centers will need to be re drilled..some people skip putting the 4 centers in and just run the outer 4 of them..def dont do that if boosted lol.
