Vette(s): 1969 convertible L71 427/435 4-speed black interior
A lot depends on what you want out of the car...pure performance, streetability, etc. What is the rpm band you want the best power from? Different header designs produce best power at specific rpm ranges.
Tri-Y headers are best at low end torque production. Long tube headers give best performance at mid- to upper-range rpm's. Block hugger headers kind of split the difference and make for good all-around performance. Tri-Y and in particular, long tube headers can create clearance problems under the hood and with the ground. Tube diameter makes a difference as well.
You need to determine the answer to those before anyone can give you a good answer. I'm partial to Sanderson headers...you can contact them and ask a tech for advice. The same goes for other brands as well.
My own recommendation...regardless of which style you go with...is to get coated headers...Jet Hot, ceramic coated, etc. The extra expense up front pays for itself in the long run...appearance, lack of rust and longevity.
Poet...Mystic...Soldier of Fortune. As always...self-absorbed, adversarial, c o c k y and in general a malcontent.
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Vette(s): 1975 Corvette coupe, 4 speed manual, 383 ci 9.5:1,Edelbrock dual plane Air Gap intake, Alum Heads,Comp Cam, roller Rockers, PS,PB,Tilt
OK, I ordered some Hedman Headers and tried them on as the engine was out of the vehicle, they looked great, but the short angled plugs hit the fore and aft tubes. I sent headers back and am currently looking to see if any forum members have photos of headers that fit in their C3.
It's lamost blasphemy, but right now I think the quick workable solution is to port the old ram's horn exhaust a little to match the head outlets so I can drive the car.
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Corvette (Vette) Model Years on this site: 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982