69 Vette Engine swap question
Thread Starter
Pro
Joined: Mar 2000
Posts: 707
Likes: 77
From: Round Rock Tx
69 Vette Engine swap question
I want to replace the 350 engine in my Vette. I have the short block from my 90 L98. Are there any issues installing this 90 engine in the 69 and mating it to the TH400 tranny?
I looked at complete engines, but I was thinking I can get get a good set of aluminum heads, a more aggessive cam (hot cam) and put this roller block together and have better performance for less cash outlay.
Going with a carb setup and Hooker side pipe headers. The computers are just too much trouble reprogramming the chips. Since it is a 69, I can stay with carburetion. I have an electric fuel pump and filter setup.
Suggestions or better ideas??? Thanks
I looked at complete engines, but I was thinking I can get get a good set of aluminum heads, a more aggessive cam (hot cam) and put this roller block together and have better performance for less cash outlay.
Going with a carb setup and Hooker side pipe headers. The computers are just too much trouble reprogramming the chips. Since it is a 69, I can stay with carburetion. I have an electric fuel pump and filter setup.
Suggestions or better ideas??? Thanks
Last edited by ralexand; Mar 22, 2005 at 01:53 PM. Reason: Additional setup info
Drifting
Joined: Aug 2000
Posts: 1,758
Likes: 4
From: Medford, Or
I've swapped a LT1's and am currently working on a LS1 swap. All modern engine swaps into C3's are worth while. Go with a overdrive tranny (auto or manual).
Dan
www.vetteworksonline.com
Dan
www.vetteworksonline.com
Last edited by vettedan; Mar 22, 2005 at 11:47 AM.
Le Mans Master
Joined: Aug 2003
Posts: 7,720
Likes: 12
From: Chattanooga TN
Other than the flexplate must match the engine (1 pc vs: 2 pc rear seal) and there is no fuel pump boss on your late engine there are no issues. Are you going to keep the TPI or put a carb?
Pro
Joined: Apr 2000
Posts: 625
Likes: 0
From: The Villages FL
Using L98 as Replacement
Corvette Fever is doing a series of articles called "Project Shark Attack". The original L48 will be replaced with an L98, but stroked to 383 CI. We want better fuel mileage so we will use a Holley 950 Commander TBI with a Holley intake manafold. Your carburetion should be just as easy to do with the plus of less valve cover leakage and the newer 1-piece rear seal. Using an 87-91 L98 also puts you into roller cam territory for increased efficiency. Sourcing cylinder heads should be relatively easy. Have them re-done with a 3 or 4 angle valve job and a little pocket porting. With the right camshaft choice you can build plenty of torque and HP rather easily without breaking the budget.
Spike
Spike
