opening manifold from 78 to 90mm???
opening manifold from 78 to 90mm??? i have a weiand/lpe manifold its ported by TEA, is it a problem of any kind if i were to have the t/b bore opened to 90mm?
can this be done? if not what size 85 mm?
can this be done? if not what size 85 mm?
Last edited by SS99LS1; Oct 23, 2008 at 12:59 PM.
From 78mm to 90mm?? Wow, thats a serious bore job!! I would say if you could do it without weakening the neck material to a dangerous point, then go for it. We are talking about porting the manifold, not the tb correct?
yes the manifold, i put my 90 up to it and it seems like it would work, trace the inside with a marker and it has a little less than 1/4" on one side no less than 1/8 on the other, could definitely get it to with in a couple "mm" of 90. . . . im just curious if anyone has done this aswell??????
Last edited by SS99LS1; Oct 23, 2008 at 01:00 PM.
i know they have a different bolt pattern all i need to do is make the holes a tiny bit oblong, egg shaped and the it should work. . . im gonna start in the morning on this if it works ill post some pics when/if i finish. . .
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
i just finished mine. it is a ton of work. lots of welding! if i could figure out how to put a pic on here i would show you the finished product. maybe i can email it to someone and they can post it.
I just started it today and I don't think it will need any welding, it seems to be going along pretty good. I didn't get any before pics but ill get some during and after. the neck seems to have enough material to retain its strength, there is extra material around the t/b port which makes the opening smaller , so I think it should be fine. . . if not im buying a new intake
I just started it today and I don't think it will need any welding, it seems to be going along pretty good. I didn't get any before pics but ill get some during and after. the neck seems to have enough material to retain its strength, there is extra material around the t/b port which makes the opening smaller , so I think it should be fine. . . if not im buying a new intake
the bottom holes wil be filled in then ill tap new holes, but the aren't off by much at all . . . the pass side of the intake has more material then the driver I don't remember exactly but I think .3 and .2 on each side , if the 90 won't work ill just go with an 85 t/b
