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Author Topic:   Is this a Good Intake?
RC Racing
Dirt Maniac

Total posts: 144
posted January 30, 2003 09:50 AM
I have an intake with the following embossed on it: casting #3973460 and it has an "S" embossed near where they embossed the firing order 1st time I've used embossed in a sentence 3 times). I'm wondering if anyone knows anything aboout this intake and if it would be a good one for a motor built under the rules listed below?

Claimer class in SE TX known as "Limited Modified". Engine rule(in part):
360 cubic inch max. Zero deck height. 10:1 four valve relief silverlite cast pistons only. Open chamber cylinder heads 76' or later. 450 max lift hydraulic cam. 1.5 long slot steel rocker arms. No roller tips. No bronze bushings in lifter bore or custom lifters (stock type hydraulic lifters only). *s*crew* in studs and guide plates allowed. 120lb stock dia springs max, stainless valves 1.94 intake & 1.50 exhaust. No angle mill. Steel timing chain. Stock crank and rods. No 6" rods in GM motors. A.R.P Rod, crank and head bolts and studs are allowed. Claimer oil pan & maximum fluid damper allowed. Cast iron water pumps only. Cast iron intakes 76" or later only.

Appreciate the assistance.


Dirt Freak

Total posts: 212
posted January 30, 2003 10:22 AM
Just go pick up a

RC Racing
Dirt Maniac

Total posts: 144
posted January 31, 2003 09:41 AM
Bringing this topic back up for discussion. KPLugnut, figured you would jump all over this one, any comments?



Dirt Freak

Total posts: 237
posted January 31, 2003 12:46 PM
KPLugnut's internet access is off right now. If you really want his opinion, shoot him an email.

RC Racing
Dirt Maniac

Total posts: 144
posted January 31, 2003 12:49 PM
Thanks istock

Dirt Roller

Total posts: 17
posted February 02, 2003 05:06 AM
"S" or "R" code intakes are the better ones made by gm. I don't think they ever made one with a egr valve the meet the "1976 or later" rule. If you can slip it by get a bowtie or marine intake (z28) intake or drop the buck at brezinski $600.

Dirt Full Roller

Total posts: 34
posted February 02, 2003 06:12 AM
runllm2, where on the intake are the letters and what year vehicles should should we be looking at when heading to the junk yard. Thanks

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