Jaw Dropping .080 bore
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Joined: Mar 2014
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From: Texarkana TX
Car: 16 2500 Mega Cab, 91 Trans Am
Transmission: 700r
Jaw Dropping .080 bore
Im curious as to how this happened because I know it has to be very rare. I just opened up my alleged "355" and was going to go for the 383 stroker set up. Once I got inside and was pulling internals and labeling I noticed my pistons were .080...What the hell!!!
Hadnt had any heating issues and only driven around 40mi a week. Now that im wanting to "street" it its going to get some abuse...My question is how did they manage to get this done? Im wanting to run NOS...Will it hold? What C.I. is 80over? 60over is 388 right?
Hadnt had any heating issues and only driven around 40mi a week. Now that im wanting to "street" it its going to get some abuse...My question is how did they manage to get this done? Im wanting to run NOS...Will it hold? What C.I. is 80over? 60over is 388 right? 
Joined: Feb 2000
Posts: 1,855
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From: St. Augustine, FL
Car: 89 GTA
Engine: 383
Transmission: 4L80E
Axle/Gears: 12 bolt-3.73
Re: Jaw Dropping .080 bore
If they thought they had enough meat in the cylinder walls, then they did it. Would be no problem for a bone stock daily driver or to just get the car back on the road. Would have to contact a machine shop on how useable it is for racing.
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From: Utah
Car: 89 RS 89 iroc 87 firebird
Engine: 3.1 Turbo/ 355 twin turbo
Transmission: a4 w/ 4500 stall/ a4 / t5
Axle/Gears: strange s60 /w 3:42's
Re: Jaw Dropping .080 bore
yup cyl wall thickness needs to be checked before u spray anything on that
or u could do what i would do stick it all back together with a refresh , and spray it with ur fingers crosed
or u could do what i would do stick it all back together with a refresh , and spray it with ur fingers crosed
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From: knoxville tn
Car: 86 IROC
Engine: 5.0 TPI
Transmission: 700-R-4
Axle/Gears: 2.73 open
Re: Jaw Dropping .080 bore
Im curious as to how this happened because I know it has to be very rare. I just opened up my alleged "355" and was going to go for the 383 stroker set up. Once I got inside and was pulling internals and labeling I noticed my pistons were .080...What the hell!!! Hadnt had any heating issues and only driven around 40mi a week. Now that im wanting to "street" it its going to get some abuse...My question is how did they manage to get this done? Im wanting to run NOS...Will it hold? What C.I. is 80over? 60over is 388 right?
Hadnt had any heating issues and only driven around 40mi a week. Now that im wanting to "street" it its going to get some abuse...My question is how did they manage to get this done? Im wanting to run NOS...Will it hold? What C.I. is 80over? 60over is 388 right?
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From: MA
Car: 1989 IrocZ
Engine: 421 Dart Stroker
Transmission: 4L60E Cahall Performance Built
Axle/Gears: Midwest Chassis Fab 9/ 3.55 gears
Re: Jaw Dropping .080 bore
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