I have a late model 454 Tbi and the base overhangs the base of the sb 3074 intake and will cause a vacuum leak,
anyone make a plate of have another way to fix that??
Thought about JB weld but that would only be a temp repair at best..
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I have a late model 454 Tbi and the base overhangs the base of the sb 3074 intake and will cause a vacuum leak,
anyone make a plate of have another way to fix that??
Thought about JB weld but that would only be a temp repair at best..
I've used 1/4" aluminum flat stock to mate a TBI to a Q-jet intake.
I’m going to make a plate out of 1/4 aluminum..Attachment 12633
But now I need longer mounting bolts:rolleye:
fix one problem and cause another...........
Yanno...I own that exact intake and through all these forums learned that the bore size is less than 1 11/16" which is smaller than the 4.3/5.0/5.7 TBIs. Anyhoo...care to share how you bored yours out to 2 inches?
Quote:
Originally Posted by stew86MCSS396
Stew, I took it over to my local machine shop that did the motor for me and had him bore it out to 2.060.
It took less than a 1/2 hour and he did it on the bridge port..Best part is he didn’t charge me...
I bought a 1" TBI spacer with the same footprint for the BB TB. Came with longer mounting bolts and new gaskets for top and bottom. It sealed just fine.
You had your 3740 intake bored out? I've heard that it's a 50/50 chance of hitting the water jackets around the throttle bores.Quote:
Originally Posted by C2500
[QUOTE=Chewy1576;69450]I bought a 1" TBI spacer with the same footprint for the BB TB. Came with longer mounting bolts and new gaskets for top and bottom. It sealed just fine.
You had your 3740 intake bored out? I've heard that it's a 50/50 chance of hitting the water jackets around the throttle bores.[/QUOTE
There’s no water around the bores it is in the floor of the intake though
Ahhh...my plate was an adapter and not so much a spacer. I never ever purchased a spacer so that thought never crossed my mind. :thumbsup:Quote:
Originally Posted by Chewy1576