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April 10th, 2002, 12:58 PM
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Advise On Stage II Block Please Help!
I have an opportunity to buy a stage II off center block 4.1 bored 60 over and a sleeve in one cylinder for 800.00 all machined and ready to go. Any problems liked head gaskets, are the bores too big . What do you guys think? T.I.A
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http://wickedv6.freeplace.net/ 1987 GN (Stage II in Process) 1987 Trans Am 355cid V8 Twin Turbo(too many goodies to list) 92 Typhoon: ATR chip,bla,bla,bla . 87 Fiero SE: wating for a GN motor transplant Other cars: Jaguar XJ6 & Mercedes AMG 500 SEC     
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April 10th, 2002, 03:59 PM
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If you don't plan to make insane horsepower, I don't see any reason you couldnt use it. The only thing that worries me is the sleeve but if it was installed by a compitent machine shop then it would probably be fine.
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April 10th, 2002, 06:13 PM
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I would not think twice about running a sleeve. Proper installation is pressed and a shelf in the block at the bottom. Sprint car teams are sleeving all 8 to get a more consistent cylinder. What does that tell you.
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86 GN Hardtop
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April 10th, 2002, 07:49 PM
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.060 over?
WIKEDV6,
You said this block is .060" over correct? Now is this 4.060"? Here's why I ask, the standard bore for a 4.1 liter block is 3.965" so if it's 4.060" then it's really .095" over. Even at 4.060" you should be fine. The sleeve isn't a big problem either unless they broke a hole in the wall of the cylinder and hit the water. You might want to have a sonic check done on the block to determine the wall thickness and any core shift. Good Luck Neal BTW, the price sounds pretty fair.
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April 11th, 2002, 07:49 AM
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Thanks guys, I am going to be all over that block!
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http://wickedv6.freeplace.net/ 1987 GN (Stage II in Process) 1987 Trans Am 355cid V8 Twin Turbo(too many goodies to list) 92 Typhoon: ATR chip,bla,bla,bla . 87 Fiero SE: wating for a GN motor transplant Other cars: Jaguar XJ6 & Mercedes AMG 500 SEC
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April 11th, 2002, 03:25 PM
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Ask if they have another. Or if you want your money back, give me a call..
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86 T-TYPE 235cu.in stock block te63-1 w/82 housing 4000 stall non lockup 70mm TB with mod. dog house mystery cam shaft ???? 1.77/1.55 heads with 3 angle valve job, sbc springs@115# pte front mount performance tranny with stageright trans brake. This is a few of the mods that have taken me 11.52et@117mph on 18#boost and pump gas. Best time on race fuel 11.06et@122.8mph on 22#boost Soon to be in the 10 second club..
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April 13th, 2002, 11:11 AM
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I ran a 4.070 bore with two sleeves and never had a problem. 4.060 head gaskets are avaliable at a some GM dealers. They are in the GM performance catalog. Good luck. Tim
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89 TTA (sold) 87 GN clone With Stage 2 2003 Cobra 10.70@127 Yes it's stock.(gone)
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