whiplash77
Junior Member
- Joined
- Sep 7, 2019
- Posts
- 2
- Reaction score
- 0
- Location
- tx
- First Name
- cody
- Truck Year
- 1977
- Truck Model
- silverado swb
- Engine Size
- supercharged 5.7
I am looking into the dart iron eagle 23degree heads with 215cc intake runners 68cc chambers and 2.050 intake valves to get it to breathe a little better with my supercharger my goal is to get away from the old 72cc 487 double hump they have been previously worked up with titanium valves some porting exc. they flow ok but it falls on its face at high rpm. I am scouring info to come to a decision on head choice and need some insight from someone who has used a 23degree head I know the runners are raised .200 and there is a few intake gasket issues but will a old style intake pattern work or will I need to modify my 142 lower intake bolt pattern? hopefully to increase flow with the big runners, gain rpm and bump up compression a few points roughly and squeeze out some more h.p. and torque buy switching over to a high performance head for street race application they do offer many different stock type heads for performance gains but there is a company that are selling the specific dart 23degree heads for dirt cheap new until inventory is gone and I am wondering it would be worth the trouble to adapt or if anyone has knowledge on a 23dg head thanks
