3927186 heads

[ALLZS]

can the small valve 186 castings be converted to the large valve

[Steve Shauger]

Originally Posted by ALLZS

can the small valve 186 castings be converted to the large valve

Absolutely commonly done.

[BCreekDave]

Don't forget to unshroud the intake valve area in the combustion chamber, otherwise just stay with the 1.94's as they will flow better without the cut.

[big gear head]

Try to find pictures of the original Z28 LT1 heads and copy them. It's more than just putting in larger valves. The combustion chambers also need to be modified.

[ALLZS]

Will it run any better or worse with the small valve heads on a lt1 350

[dustinm]

I doubt you will be able to feel any difference

[BCreekDave]

If you are running exhaust manifolds and full exhaust, don't bother.