My 083's are back! PICS!
08-29-2011, 10:21 AM
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Car: 89 5.7 IROC/95 LT1 Corvette
Engine: All 5.7's
Transmission: 700R4 (Roessler)/ZF6
Axle/Gears: 10 bolt Zexel 3.23's. CTW 17" wheel
My 083's are back! PICS!
After much trial and tribulation my heads are back and on! I ported them my self, I had a 3 angle valve job done with a 30 degree back cut. I went with LT4 springs and Viton positive seals. Also had a clean up done on the head surface of 10 thous.
08-29-2011, 01:56 PM
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Car: 89 5.7 IROC/95 LT1 Corvette
Engine: All 5.7's
Transmission: 700R4 (Roessler)/ZF6
Axle/Gears: 10 bolt Zexel 3.23's. CTW 17" wheel
08-29-2011, 08:12 PM
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Car: 89 5.7 IROC/95 LT1 Corvette
Engine: All 5.7's
Transmission: 700R4 (Roessler)/ZF6
Axle/Gears: 10 bolt Zexel 3.23's. CTW 17" wheel
Re: My 083's are back! PICS!
I'll find some......
08-29-2011, 09:17 PM
#7
Re: My 083's are back! PICS!
Eagle223usa, do your GM 1.6 RR fit inside your center bolt valve covers? I have a set of Summit G6906 and mine look so similar to your GM RR. My point is mine dont fit in my center bolt valve cover.
here are what mine look like...
here are what mine look like...
Trending Topics
08-30-2011, 02:11 PM
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Car: 89 5.7 IROC/95 LT1 Corvette
Engine: All 5.7's
Transmission: 700R4 (Roessler)/ZF6
Axle/Gears: 10 bolt Zexel 3.23's. CTW 17" wheel
Re: My 083's are back! PICS!
I believe the GMPP's were made by Crane for GM. And yes they fit with centerbolts!
08-31-2011, 12:15 AM
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Car: 89 5.7 IROC/95 LT1 Corvette
Engine: All 5.7's
Transmission: 700R4 (Roessler)/ZF6
Axle/Gears: 10 bolt Zexel 3.23's. CTW 17" wheel
Re: My 083's are back! PICS!
Porting pics... First, Just back from the machine shop. Next two are as porting progressed. Sorry they are out of sequence, I just noticed I had the first pic mislabeled, fixed now!
Last edited by Eagle223usa; 09-07-2011 at 02:00 PM.
08-31-2011, 12:18 AM
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Car: 89 5.7 IROC/95 LT1 Corvette
Engine: All 5.7's
Transmission: 700R4 (Roessler)/ZF6
Axle/Gears: 10 bolt Zexel 3.23's. CTW 17" wheel
Re: My 083's are back! PICS!
Close up of exhaust port...
08-31-2011, 12:25 AM
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Car: 89 5.7 IROC/95 LT1 Corvette
Engine: All 5.7's
Transmission: 700R4 (Roessler)/ZF6
Axle/Gears: 10 bolt Zexel 3.23's. CTW 17" wheel
08-31-2011, 12:55 AM
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Car: 89 5.7 IROC/95 LT1 Corvette
Engine: All 5.7's
Transmission: 700R4 (Roessler)/ZF6
Axle/Gears: 10 bolt Zexel 3.23's. CTW 17" wheel
Re: My 083's are back! PICS!
Thanks, I want to hear them RUN! Other parts are still waiting to get ceramic coated....
08-31-2011, 08:27 AM
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Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: My 083's are back! PICS!
Crane used to make the rockers 4 GM, I think scorpion does now
08-31-2011, 08:32 AM
#16
Re: My 083's are back! PICS!
You are very correct. These RR that I got are too wide for my centerbolt covers. My friend has the blue self aligning Scorpions and they do fit under his centerbolt covers. So not to hi-jack the thread, let's get back to the 083 topic shall we?
08-31-2011, 09:15 PM
#17
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Re: My 083's are back! PICS!
From the GMPP 2008 catalog the aluminum full roller rocker arms (blue in color, self-aligning style, rocker ratio and bowtie emblem samped on the top) are available in two ratios:
1.5:1 ratio, part number 12370838 for a full set (12367345 for a single rocker arm)
1.6:1 ratio, part number 12370839 for a full set (12367346 for a single rocker arm)
1.5:1 ratio, part number 12370838 for a full set (12367345 for a single rocker arm)
1.6:1 ratio, part number 12370839 for a full set (12367346 for a single rocker arm)
08-31-2011, 09:49 PM
#18
Re: My 083's are back! PICS!
From the GMPP 2008 catalog the aluminum full roller rocker arms (blue in color, self-aligning style, rocker ratio and bowtie emblem samped on the top) are available in two ratios:
1.5:1 ratio, part number 12370838 for a full set (12367345 for a single rocker arm)
1.6:1 ratio, part number 12370839 for a full set (12367346 for a single rocker arm)
1.5:1 ratio, part number 12370838 for a full set (12367345 for a single rocker arm)
1.6:1 ratio, part number 12370839 for a full set (12367346 for a single rocker arm)
09-05-2011, 11:18 AM
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Car: 89 5.7 IROC/95 LT1 Corvette
Engine: All 5.7's
Transmission: 700R4 (Roessler)/ZF6
Axle/Gears: 10 bolt Zexel 3.23's. CTW 17" wheel
Re: My 083's are back! PICS!
Got some pics of the rockers....
09-05-2011, 11:20 AM
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Car: 89 5.7 IROC/95 LT1 Corvette
Engine: All 5.7's
Transmission: 700R4 (Roessler)/ZF6
Axle/Gears: 10 bolt Zexel 3.23's. CTW 17" wheel
Re: My 083's are back! PICS!
Oh, I also used GMPP .028 gaskets to maintain compression.
09-05-2011, 04:27 PM
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Car: 89 5.7 IROC/95 LT1 Corvette
Engine: All 5.7's
Transmission: 700R4 (Roessler)/ZF6
Axle/Gears: 10 bolt Zexel 3.23's. CTW 17" wheel
Re: My 083's are back! PICS!
Anytime Brother!
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