heads

[kd5cue]

how much gain would you get over edelbroch rpm heads vs stock gm heads on 5.7

[mrfixxall]

how much gain would you get over edelbroch rpm heads vs stock gm heads on 5.7

50 to 60 hp,,thats what im running...I bought the 70 cc combustinn chamber ones and their angled plug type, but i also zero dected my block..
if your not planning on rebuilding the engine just get the 64 cc with the straight plug kind..

[kd5cue]

i rebuilt motor in dec,,70cc heads will nearly give me10 to 1 comp,since i have .125 pistons.

[kd5cue]

:confused::confused:

[kd5cue]

how much gain would you get over edelbroch rpm heads vs stock gm heads on 5.7will angled hole spark plug,work with glm ext manifolds?which is better straght or angled?:confused:

[cvx]

I use GLM manifolds w/Dart heads,prefer angle plugs,gives more room to work.

[mrfixxall]

kd did you zero deck the block?and that combo should give you closer to 11.0 ratio which isnt bad you just have to watch your timing..you loose a point of compression with alunimum heads...my cranking compression is 165psi per cyl..

[kd5cue]

kd did you zero deck the block?and that combo should give you closer to 11.0 ratio which isnt bad you just have to watch your timing..you loose a point of compression with alunimum heads...my cranking compression is 165psi per cyl..with 70 cc heads?no i did not zero deck:eek!:

[mrfixxall]

with 70 cc heads?no i did not zero deck:eek!:

>125 dome or dish pistons?

[kd5cue]

>125 dome or dish pistons?
125 dome