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Old 02-19-2006, 09:12 PM
84 Z28 Convertible
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Edelbrock RPM Air Crossover Coolant Hoses

Im looking for a Edelbrock RPM Air gap pre-fab crossover coolant hoses to run from the front to rear of the intake to provide the extra flow to rear of the heads and intake. Do they have a complete kit that can be used on this intake? I have search Summit & Jegs without any results. Also does it make since to put this on my set up (See Signature) for a street cruiser that do not get a lot of miles, roughly 2000 a year and car shows.

Scat 4340 Crank, Wiseco Pro-Tru Piston, Eagle 6" H-Beam Rod, Lunati-280/284F10-247/ 251 525/530 110/106, AFR-195 Street, Hooker Super Comp 1-3/4 Headers, Pro-Built Auto 700R4, ACT 3000SS, Strange 12 Bolt 3:73,
Pro-System Carb.


Last edited by DTL504; 02-19-2006 at 09:35 PM.
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Old 02-20-2006, 05:24 AM
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Youre confusion is not logical
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Speedwaymotors.com sells a kit here. You won't find many of these because they are generally not worth it, especially in a street car. If you were going to sustain high rpms for a long period of time it might be beneficial, but otherwise, not so much. The AFRs do only have one inlet instead of the standard three for "casting integrity," (which they wont tell you before you buy them...) so they might have some worse cooling characteristics, but I've never had a problem with mine. Since you have limited airflow in your Camaro, run a 180* thermostat and a good radiator.
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Old 02-20-2006, 07:21 AM
84 Z28 Convertible
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Thanks for the reply, Yes I have a Griffin Radiator w/ a 180* T-Stat and she never reach 200*. I have an electric fan that turn on at 180* plus a Stewart Hi Flow Stage 3 Water Pump.
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Old 02-20-2006, 02:03 PM
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The additional cooling is to prevent steam pockets next to the metal, called neuculite boiling. This is done most often between middle cylinders with the adjacent exhaust ports.
Check with some circle track stuff about lines, etc.

Just because your overall coolant temp is low, does not mean that you do not have steam pockets in the heads at critical places causing overheating and detonation.

Another solution is Evans coolant. It free boils at 369* F and allows increased power. Definitely worth the extra dollars.

I would dump the electric fan. Go for a thermostatic fan clutch, 7 blades, and a factory shroud. Don't forget to seal the core support to prevent underhood air from being sucked back into the front of the radiator at low speeds and stopped.
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Old 02-20-2006, 02:33 PM
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It's simple enough to do yourself without paying for a ready-made stuff. The hose ends are easy to install if you follow the destruction sheet that comes with the hose and you'll feel better if you do it yourself.

Here's the Earl's part numbers and quantity you'll need.

P.n.- 403010 Hose, Perform-O-Flex, Braided Stainless Steel, -10 AN, 3 ft. Length, quantity 1

P.n.- 800110 Fitting, Hose End, Swivel Seal, Straight, -10 AN Hose to Female -10 AN, Aluminum, Red/Blue, quantity 4

P.n.- 982210 Fitting, 90 Degree, -10 AN Male to 1/2 in. NPT Male, Aluminum, Blue, Each quantity 4

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