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Feb 4, 2007 | 12:37 PM

#11

LARRY01Z28

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From: waynesburg, KY.

sounds like that truck is going to scoot.

Feb 4, 2007 | 03:22 PM

#12

trtturbo

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From: Newark, Tx.

Quote:

Originally Posted by kbracing96

Actually, I think there is a ton of air flow at the front of the bed when at speed (upward). Have you ever seen a soft tonneau cover when going down the highway? On my S-10, it was all ballooned up in the front and sucked down in the rear. I bet you would be surprised at how much air flow there is.

Never really thought about the air flow back there. It would be pretty easy to come out of the turbo and into an intercooler back there. I dont know, maybe I should at least try and check the air flow back there. If not, a2w would work.

Feb 4, 2007 | 11:43 PM

#13

TURBO8

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From: San Francisco Ca

So that is a 5.3 iron block with 5.7 forged pistons? I was thinking of doing that combo next but it looks like I have alot of rust on the #4 cylinder, I think its more than the 5.7 bore. I think you should be able to do it. The OBS trucks are alittle lighter as well. The turbo in the bed sounds interesting. Sounds good to me. I think the trans will be the weak link, she may hold for a little while. Good luck.

Feb 4, 2007 | 11:45 PM

#14

TURBO8

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From: San Francisco Ca

Ok I reread it, the new setup is the 347ci. Got it. What compression?

Feb 5, 2007 | 08:44 AM

#15

trtturbo

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From: Newark, Tx.

it is an iron block 5.3 bored to 3.90, stock crank, Eagle rods w/ARP rod bolts, Diamond pistons, Speed Pro rings. With the Patriot 72cc heads, it will be 9:1.
I expect the trans to go south soon, but I have a tranny builder that I think is as good as anyone. We have 4l60s behind anything from track only cars with 300+ passes to 408 turbo awd Silverado SS'.