Hello everyone. I acquired a superram intake set with a 58mm throttle body, and I'm going through it all and cleaning it up. One thing that's confused me though is the throttle body I got with the setup. I believe this may have been originally used on an LT1 engine or similar, but I'd like help just identifying everything. The car this is going on to is actually a 1988 'Vette, but I figured I'd ask here for help, too. Excuse the potato pictures.

-The throttle body included two IAC housings, with the LT1 style mounted, although the earlier L98 bolts right on.
-The throttle cable mount seems to be different. Is there a way to change this out for one compatible with my current one, or would I need to find a whole new TB with the correct mount?
-The intake plenum didn't have the original cable bracket, but had a shaft there instead.

Also, the intake base on a vortec had the holes go straight down, correct? This accel base has the angled bolt holes.​​​​​​​



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grind the weld holding your throttle cable bracket on your stock throttle body and unbolt the accel one and swap brackets

reuse your stock tpi cable bracket if running auto with detent cable you need to bend and or only use two bolts to get the detent cable to make the bend

unsure what your asking about the base if you have voretc heads you need a vortec tpi base that base looks like it has the typical SBC bolt pattern that your vette should have

the super ram plenum is also different on LT1s you may have fitment issues with that aswell but i believe the vettes accessories are better located than on F bodys, from that pic i cant tell if thats a LT1 super ram plenum or not

Sorry for the delayed response. What's the difference between an LT1 and TPI super ram plenum? I did confirm it's a typical SBC accel base, not the vortec style, which makes the pairing with the LT1 throttle body just a bit confusing.