Putting a 355 in an 86 Z28. Motor is nothing special, cast pistons, "X" rods, new steel crank, Comp 268H (218/218 .454/.454), older Performer intake with a Carter AFB Carb (not sure on CFM).

I have 3 heads choices:

Ported 882's
Stock 14022801
Stock 14102193

I believe the 14022801's have smaller valves than the others so I think I'm leaning away from those. This is just a street car, so maybe the 882's would be best....

Has anyone built a combination close to this? I'm thinking my best bet, performance wise, is to port the 14102193, any suggestions?

 

Aren't those all open chamber heads?

My ported/milled 882's do pretty well.

I've heard that 193's can make some respectable torque though.

 

i like the 882s myself, they work fine for me.

 

With that cam, the 882s aren't going to show any advantage over the 193s. The 193s will give more compression.

 

What kind of compression are you guys running with the 882's? I'm thinking my compression is going to be very low (8:1-8.5:1) with them.....

 

i got some where around 9.5 to 1...but my heads are milled and the pistons are flat top