06-28-2021 | #1 |
Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,194
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63 MM Throttle Bodies
I have three throttle bodies and enough blades to do all three to 63MM... looking at interest. I was thinking $700 outright or $400 with your core.
Let me know
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
06-28-2021 | #2 |
Join Date: Nov 2011
Location: Dunbarton NH
Posts: 7,492
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Re: 63 MM Throttle Bodies
Expected gains Lee?
I'm fully ported with cams. |
06-28-2021 | #3 |
Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,194
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Re: 63 MM Throttle Bodies
Probably 8-12 HP and better throttle response... most of the big builders did them back in the day Rippie, Lingenfelter I believe.. others might chime in
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
06-29-2021 | #4 |
Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,708
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Re: 63 MM Throttle Bodies
I?m have been using a 63mm TB for quite some time. Mods include Pete?s Stage 2 cams w full porting, headers, and my tune.
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[SIGPIC][/SIGPIC]Former Membership Chairman Former ZR-1 Registry - BOD 1972 Corvette 4speed base Coupe SOLD long time ago 1984 Corvette Z-51/4+3 SOLD 1992 Corvette ZR-1 Aqua/Gray #474 SOLD 1992 Corvette ZR-1 Black Rose/Cognac #458 2014 Honda VFR Interceptor DX |
06-29-2021 | #5 |
Join Date: Feb 2016
Location: Carterville Illinois
Posts: 852
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Re: 63 MM Throttle Bodies
I would be interested, would it be ok to do on an all stock motor? Or not worth it unless upgrades were done?
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06-29-2021 | #6 |
Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,194
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Re: 63 MM Throttle Bodies
You would need mods to take advantage; need to match the plenum openings to 63mm
Sent from my iPhone using ZR-1 Net Registry
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
06-29-2021 | #7 |
Join Date: Aug 2014
Location: Maple Park, Il.
Posts: 54
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Re: 63 MM Throttle Bodies
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06-29-2021 | #8 |
Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,194
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Re: 63 MM Throttle Bodies
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
07-01-2021 | #9 |
Join Date: Apr 2016
Location: Birmingham, Alabama
Posts: 60
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Re: 63 MM Throttle Bodies
Does the intake horn have to be modified as well?
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07-01-2021 | #10 |
Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,194
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Re: 63 MM Throttle Bodies
Yes the air horn mist be matched
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
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