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Old 09-30-2002, 04:27 PM
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Question Longblock for blown sbc. Howz it sound?

Hey Crew.
Since the Hemi's gone, Im starting on my blown sbc motor and heres what Im thinking so far. Remember its a mainly street motor and will see around 6500 rpm's.
1. 350 4 bolt main, bored 030 over.
2. Scat 9000 crank(7500 rpm rating)
3. Eagle 5140 I beam rods.
Lightning heads with 2.05X1.60 valves, 180cc runners, steel valves, locks, guides, 72 cc chambers.
4. Crane cam's 534/553 lift by 289/296 duration. 226/236 at 050. 112 lobe seperation and a 2500 to 6500 rpm rating.
5. TRW blower pistons yielding around 8 to 1 comp.
6. dbl roller chain or pete jackson gear drive.
Sound good so far? Any suggestions? Thanks HG

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Old 09-30-2002, 04:42 PM
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Looks good but scrach the gear drive, robs HP and the blower will make enough Noise!And some good SS exhust valves they can really heat up running a blower as will the headers maybe envest in some header wrap.O by the way my daughter lives in Chillicothe, Scott
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Old 10-01-2002, 02:12 PM
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Thanks scott. Ive thought about the header wrap, but was still undecided. Whats your girls name? Small town, maybe I know her. HG
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Old 10-01-2002, 02:25 PM
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I am not sure without looking, but is that scat crank forged? If not, I would suggest at least a 4130 piece. I would also definately recommend a set of 4340 rods. Dirttrackthunder.com sells the scat 4340 rods with 7/16 bolts for under $300 on ebay. You can also call and get that price. Just my .02.
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Old 10-01-2002, 03:25 PM
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[ October 07, 2002: Message edited by: roys63 ]</p>
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Old 10-01-2002, 10:32 PM
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If you are going to go with the Scat 9000 crank, you might have to go with 6" rods. I have a 350 SBC in the machine shop right now that I am putting a Scat 9000 crank in and they told me that they have had some clearance with 5.75" rods. Jim
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