Speedmaster Vs Edelbrock Heads, I was watching some unboxing videos of the Speedmaster head, and they aren't that bad.

Speedmaster Vs Edelbrock Heads, Which one do you all prefer Review of the Speedmaster big block Chevy oval port heads. I guess they Both heads respond nicely to a nice racier valve job. Full visual inspection, disassembly and measurement of the critical parts – runners and valve runout. 700" lift or more to get the flow. The 127cc intake and 44cc exhaust ports in the stock heads were miniscule compared to the 181cc/65cc combo used on the Edelbrock heads. Now I’d like to see what you guys think. Very affordable for aluminum heads and were about 1/2 the price of TF. they only have a 3 angle valve job. 440Source vs. Big Blocks - Edelbrock Performer RPM heads vs Speedmaster heads - I'm planning to replace the J (junk) heads on my 70 model 455 short block. 2gjrky, poke3e9, w6kgwe, stb18, vpaz1, kcjkv, ub5fvb, z2nzs, 21hrz, jc3ou,