Replace TPI with LT1 induction
Thread Starter
Burning Brakes
Joined: Nov 2003
Posts: 914
Likes: 1
From: Redding Ca
Replace TPI with LT1 induction
Forgive me for this one. I know I have read some threads on this subject in the past but I cannot find them in the "Search" function. Does anyone know whether an LT1 induction can be substituted for the TPI (1988 model) and still pass the California "visual" during the bi-annual smog test? I heard that it might because it is OEM equipment and all the smog equip hooks up. I was under the empression I could not change induction systems unless they had an EO# or were available for the year car involved. Of course the LT1 induction came out several years later 
If this is true, I want to know what is involved. Can you either (1) tell me what machining/modifications are involved, or (2) what to key in on the forum's search" function to find this discussion, or (3) does anyone make these LT1 conversions commercially available for TPI equipped engines?
If this is true, I want to know what is involved. Can you either (1) tell me what machining/modifications are involved, or (2) what to key in on the forum's search" function to find this discussion, or (3) does anyone make these LT1 conversions commercially available for TPI equipped engines?
Florida turtle advocate
Joined: Dec 2003
Posts: 4,280
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From: Gulfcoast Salvage Englewood, Fla
St. Jude Donor '05-'06
Burning Brakes
Joined: Nov 2002
Posts: 1,239
Likes: 1
From: Las Vegas NV
Originally Posted by Daffy427
www.LT1intake.com go there for all the info I'm in the process of doing one now
Team Owner
Joined: Sep 2003
Posts: 25,295
Likes: 4
From: I'm the walkin dude I can see all of the world...
St. Jude Donor '03
I think its a really good idea for someone one a budget. Then you get some of the best of both worlds: No Opti with LT-1 intake. Probably could make pretty decent power with that setup.
Now, I'm gonna go back and play with my opti
Now, I'm gonna go back and play with my opti
Thread Starter
Burning Brakes
Joined: Nov 2003
Posts: 914
Likes: 1
From: Redding Ca
Wow. Great website reference! Exactly what I was looking for, complete with a Pop Hot Rodding article on the swap, dyno tests, costs, FAQ's, everthing. 
I am a happy camper!
I am considering a 427 engine for daily driver/occasional drag strip passes in my '88. I am thinking the Mini-Ram would be the best for me, (low end torque should be a non-issue) but it has no EO# nor will it pass smog. But from the physical appearance of the LT1, I would think the two should produce quite similar torque signatures, particularly with some porting. So I want to explore this alternative.
I am a happy camper!I am considering a 427 engine for daily driver/occasional drag strip passes in my '88. I am thinking the Mini-Ram would be the best for me, (low end torque should be a non-issue) but it has no EO# nor will it pass smog. But from the physical appearance of the LT1, I would think the two should produce quite similar torque signatures, particularly with some porting. So I want to explore this alternative.
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