I have some heads from a 2000 L67, but I have a friend who needs heads for a Grand Prix GT, non supercharged motor. Are the heads the same on both the NA and Supercharged motors?

Thanks!

I think you meant to say L36 (3800 Series 2 N/A) and L67 (3800 Series 2 SC); correct? (L32 = 3800 Series 3 SC)

The L36 and L67 heads are the same casting and are identical except the L67 versions have a set of injector holes drilled in them. You could tap and plug these holes in the L67 heads and use them in an L36 application, no problem (but you would also need to use L67 valve covers as well).

-ryan

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6+ years on this same swap -- NO engine or transmission failures...

Custom GM OBD1 & OBD2 Tuning | Engine Conversions & more | www.gmtuners.com

L36 intake with L67 heads = dual injectors!

quote Originally posted by Will: L36 intake with L67 heads = dual injectors!

now, if we could only have dual intakes to go along with dat

Thanks for the help... I guess the guy who bought the head might be bringing it back... lol. ohwell.

L32 is a Series III Supercharged 3800. L36 is a Series II Non-Supercharged 3800.