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Round port. Will fit '77-78 Z-cars and also the 76 California cars. These headers will not fit cars with an automatic transmission. For those models you must use our 621 headers. These are a tuned header, which have the potential to produce more horsepower than a non tuned version. These headers will not fit a car with an automatic transmission. For those models you must use our 621 headers. The stock heat shield for the pcv valve hose will not work with these headers for the 75-78 z's, BUT we do sell a modified heat shield that will fit just fine. We also sell a ceramic coated Chromex version of the same modified heat shield. Special order only, please allow 1-2 weeks for delivery to us.
Ceramic Coating called Chromex coating available - call for pricing. The picture shown is of a chromex version of the same header. Chromex coating does cost extra, uncoated these headers are painted black, and the paint will burn off soon after running the engine, and the header will start to rust. If you have it coated then it should never rust. NO RETURNS, REFUNDS, EXCHANGES, OR EXCHANGES ON SPECIAL ORDER PARTS. Last update 04/07
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