late model small blocks like LT1's or LS1's

[clinebarger]

Originally Posted by BR3W CITY

The biggest advance they had was reverse flow cooling...which wasn't even GM's design. Evans designed the system and GM put it into the LT1, then proceeded to get sued for it.
Then, as mentioned, the opti-spark...which was poorly designed from the get go. On top of that, guys have been converting SBC heads (MUCH OLDER tech) to work with the reverse flow cooling on the LT1, because they flowed better AND because so few people ever made heads for it. The tech was dead before it started,

Ive owned several LT1s never had many Optispark problems...They last atleast 100K.
Iron LT1 & Iron Vortec heads share the same port design & flow VERY well. Then you got the LT4 head. I see no reason to adapt gen 1 heads to a LT1.