has anyone every used these? I got a 400 for my 67 goat may try to find a 455 and was thinking about using thsese heads. good or bad idea? If they are lousy what should i use.? All i can find for cast iron heads are 6x are thesse any good?
2006-09-04 17:30:31 · 5 answers · asked by turkey 6 in Cars & Transportation ➔ Car Makes ➔ Pontiac
Hot Rod just did a build in their latest mag, the heads were worth more than 100 hp over stock on a '73 400 smogger. You need to change to RAIV style headers, and pick the right cam and intake.
2006-09-05 07:05:26 · answer #1 · answered by InjunRAIV 6 · 0⤊ 0⤋
Edelbrock heads out of the box are slightly better than mildly ported stock heads. By mildly ported I mean port entrances at head mating flange are matched to the gasket openings and some valve pocket blending. given the cost of mildly porting any stock head as described above, the Edelbrocks are actually a cost saver usually. In addition, they'll reduce the weight on the front of your car which is already nose heavy.
2006-09-05 06:03:22 · answer #2 · answered by tepidorator 3 · 0⤊ 0⤋
While Edlebrock heads are good heads it all depends on how much money you want to spend. I prefer heads from Airflow Research. They get me down the 1/4 in 9 1/2 sec. but they are very high priced. If you are just building a street machine you will be happy w/ them.(Edlebrock)
2006-09-05 06:49:38 · answer #3 · answered by wzzrd 5 · 0⤊ 0⤋
I don't have any Pontiacs myself, but as a parts tech who sold Edelbrocks, I can tell you that the vast majority of the guys who used Edelbrock heads on their BOPs were very happy with them.
2006-09-05 00:40:51 · answer #4 · answered by Harry 5 · 0⤊ 0⤋
Edelbrock is a good cylinder head. I have seen them used with very good results. If you match a camshaft pretty well with them (their tech line, or any camshaft manufacturer can help you decide on a camshaft) they make good power.
2006-09-05 00:37:39 · answer #5 · answered by crazytrain_23_78 4 · 0⤊ 0⤋