I've been researching the AFR 180 Street Eliminator Heads for my car. I've been able to figure out most of what I need except the head gasket, intake gasket, & these damn 1.6 rocker arms.

Engine: 355 SBC
Cam: Comp 08-302-8 hyd roller, 210/220 @ .050, .480/.480 lift, 112 LSA
Intake: port matched TPI from 52mm TB thru ASM runners

My Issues:
1) I've read to stay away from aluminum 1.6 full rollers. Ok. The problem I have is AFR recommendns AGAINST the Pro Magnums which leave me with what? I cannot find steel 1.6 full rollers anywhere. I've looked into Scorpions (aluminum, lifetime warranty) and the noisy stainless arms. I need a couple recommendations.

2) As far as the intake gasket goes, there are no specs on the port size of the heads. AFR recommends FP 1256 (1.99x1.23). I was looking at the Mr G 5820 (2.00x1.25). I'd like to port match my manifold to the heads. Is either gasket going to suit my need more than the other? I'm leaning toward the Mr G for the bigger port.

3) The head gasket has left my head spinning. AFR recommends the FP 1003 (.041/4.166) I've calculated/estimated a few gaskets. The constants I used are: 65cc volume, 5.000 pist head vol, 4.040 cyl bore, .025 deck clearance (Jasper could not give me a number, so I used "stock"), 3.480 stroke, 5.700 rod length, 33* intake closing. That said, here's what I calculated:

FP 1010 .039 thickness/4.166 gask bore/9.709 Stat Comp Rat/9.206 Dyn CR
FP 1003 .041/ 4.166/ 9.664/ 9.164
FP 1143 .040/ 4.165/ 9.687/ 9.206
MRG5800 .038/ 4.130 / 9.749/ 9.244
MRG3131G.040/ 4.125/ 9.704/ 9.201
SCE61114 .0395/ 4.140/ 9.709/ 9.206

I was shooting for 10:1 CR or less. I'd like to have your opinions on which head gasket and compression ration would work best for me. My choice is either FP 1010 or SCE 61114.

4) My Superram manifold. I am planning on getting the PN 916 heads which are for pre-87 manifolds. They have the straight plug (read: headache eliminator). My Superram manifold DOES have the dual bolt pattern, no? I am seeing correctly?

Thanks to all who reply.
Eric

 

I've ready many good things about the crane golds on here for your rockers. I personally have the "noisy" stainless.

I went with AFR's recommendation on the intake gasket. I have the 195 Eliminators and the gasket port holes were larger than the ports. Slightly.

You may want to look into a shim head gasket. You want to keep your quench in the 35 to 39 range. Measure how deep your slugs are in the holes. A straight edge and feeler gauges will give you that number. Then add the compressed thickness of your head gasket to give you the quench number. There's more power and efficiency to be had if you keep your quench in check.

I know jack about the Superram.

 

I'll certainly look into the shim gasket. Only thing I'm leary of is getting too thin of a seal and blowing the gasket out. Since I don't know the real deck height, it is probably best to wait, measure, buy.

 

I haven't blown mine out yet.
It's made of metal. I also used copper spray on both sides of the gasket and have ARP bolts holding it down.
My cr is 10.25:1.
I have compression psi of 225.