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Old 08-09-2017, 11:38 AM
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Car: 1989 chevy trk4x4,1994Z28
Engine: 307to400 (colector)
headers help

iv got a 1984 camaro that im going to put a 604 crate motor in it has d port heads, with a kick out oil pan, what headers would be my best choice? i would like to use long tubes 1 3/4 max. or 1 5/8 min.my car is not lowered. im going to keep the AC,power steering, alternator. the car is for the street and maybe a couple of times at the drag strip
Old 08-09-2017, 12:05 PM
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Car: 1991 Z28 Vert
Engine: 383 single plane efi
Transmission: T-56
Axle/Gears: 8.8 with 3.73s
Re: headers help

How much are you wanting to spend? Though I'm not sure if big block headers for a Thirdgen are still available, the port spacing between big blocks and LS is said to be very close. You may look I to the cost of long tube 1.75 LS headers and just have a shop modify them.
Old 08-09-2017, 12:18 PM
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Re: headers help

its a small block. i dont want to spend more than 900. i want to go a with a daul exhaust system
Old 08-09-2017, 03:18 PM
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Re: headers help

Wouldn't a 604 be a big block?
Old 08-09-2017, 04:12 PM
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Re: headers help

No it's a small block the 604 is the last the numbers is the casting number the 604 is a racing motor
Old 08-09-2017, 04:14 PM
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Re: headers help

Some parts from the zz4 will fit the 604
Old 08-10-2017, 06:18 PM
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Re: headers help

Best fitting for small block would be the hooker long tubes. The fit is fantastic but they aren't great for lowered cars




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