Likewise, LT1-specific water passages severely limit aftermarket cylinder head availability and worse yet, there's no such thing as an aftermarket LT1 block.
GM claimed that the original LT1 aluminum head had a 15% increase in airflow as a result of revised port angles and higher port ceilings when compared to the 1991 L98 head.
DRM carries a full line of high performance springs and retainers designed to fit your LT1/LT4 or LS1/LS6 Cylinder Head, and match up perfectly to your camshaft ...
GM claimed that the original LT1 aluminum head had a 15% increase in airflow as a result of revised port angles and higher port ceilings when compared to the 1991 L98 head.
* Both the LT1 and the LT4 Heads accommodate 7/16" studs but the LT4 has larger 7/16 rocker studs. (top threads) The LT1 studs are 3/8" on top and 7/16" bottom. pt ...
Edelbrock 61909 - Edelbrock Performer LT1 Cylinder Heads: These Edelbrock Performer LT1 cylinder heads are designed for the 1992-97 LT1 engines. They produce approximately 24 hp ...