Best 58mm TB
Are you planning on going with a stroker motor with some great heads and a big cam in the future? If not that 58 mm TB is WAY to big for just a bolton car. Even a 52 mm is too much IMHO.
I swapped from a airfoiled stocker to a 58mm BBK/Edelbrock(got CHEAP) and while it changed throttle response it really did not make more power SOTP or with the parameters I can monitor through the pcm and this is a mildly cammed motor. I did have to modify it to make the car idle well which is normal for aftermarket TBs on LT1s other than that I have not had any issues. But again I did not see a power gain and I did open up the intake.
For a bolton car I would recommend going no further than a rebored stocker if even that, for the 383 a 58mm might be the way to go though just so you absolutely know the TB is not a restriction.
For a bolton car I would recommend going no further than a rebored stocker if even that, for the 383 a 58mm might be the way to go though just so you absolutely know the TB is not a restriction.
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Originally Posted by METALBEAST
Are you planning on going with a stroker motor with some great heads and a big cam in the future? If not that 58 mm TB is WAY to big for just a bolton car. Even a 52 mm is too much IMHO.
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Originally Posted by 94greencamaro
Motor is going to be a 383 stroker, AI fully CNC ported heads, camshaft somewhere around .530-.550 lift, lt headers, etc.
Originally Posted by 94greencamaro
What about Holley
the two holley's my friend had (sold the 52mm a year ago and now has a 58mm for his 383) both have problems with the throttle blades opening more than they're supposed to so he had to machine a throttle stop for them. Has anyone else had to do so?
Originally Posted by buffman
the two holley's my friend had (sold the 52mm a year ago and now has a 58mm for his 383) both have problems with the throttle blades opening more than they're supposed to so he had to machine a throttle stop for them. Has anyone else had to do so?
Originally Posted by brandboZ28
Ive also heard of this happening but have no personal experience with it. I still have a stocker.
YEA Boyee. Im was thinkin about doing my TB too. But i dont know if its worth it now.
