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Old 07-19-2013, 01:46 PM   #27
solidaxel
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Join Date: Dec 2002
Location: Cactus Patch So. Az
Posts: 4,749
Re: Modern Engine Swaps: Dexcool or Old School?

Some more info for what it is worth !

Red
I changed my truck to green, then started to worry about it. So, I called my buddy, the GM design engineer who worked on the design and testing of the LS engines--and he spent a lot of time with the truck 5.3 engine.
He said to use only Red!
He had about 4 or 5 hot rods at the time with various chevy engines in them, including LS engines.
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53 TuTone Extended Cab 350 4-Spd 3:08 (SOLD)
53 Chevy Moldy pearl green ZZ-4 4L60E 9" 3:25
55 GMC 1st Black Mll (ZZ4) ZZ6 TKO 600 5 sp 3:73
62 Solidaxle Corvette Roman Red (327
340hp 4spd 3:36) C4 & C5 suspension tube chassis
LS 3 4L70E
65 Corvette Coupe 327 350hp 4spd 4:11
78 Black Silverado SWB (350/350) 5.3 & 4L60E 3:42
2000 S-Type 3.0 (wife cruiser)
2003 GMC SCSB 5.3 4L60E 3:42
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