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Discussion Starter · #1 ·
Hello all. I'm toying with the idea of building a 3.8. Let me get right to questions:
Is a 3.8 is a 3.8 is a 3.8? I'm using an 85 Park Ave as my daily driver. Is it something I want to build up or is different from the T-type and G/N's powerplant? Needless to say it would be transplanted into another vehicle. What would I need to do to slap a turbo on it,intercooler too,and generally make it bulletproof? Maybe someone here could provide me with a proven combo. Am I wasting my time with the 3.8 in the P/A? Do I need to get some other block/heads and pitch what I have,or seriously work what I have? What about a transmission? I don't know exactly what I would put it in,but it would most likely see track use only. 10's would be nice by the way! So what about it guys? Thanks.


1996 Cobra,Laser Red,4.10's,Eibachs,offset steering rack bushings,Steeda C/C plates,K&N,Flowmasters,Fluidyne radiator,manual fan switch.Best pass:[email protected] w/1.975 60'on E.T. Streets(I know,I suck)
Installation in process:used 5115-2 NOS kit

[This message has been edited by GotPushrods? (edited March 28, 2001).]

Resident Idiot
11,462 Posts
I have no recommendations on what do with an '85 PA engine. I say leave it intact in that car and aquire another complete motor.

For someone proficient with the GN motor, it's not that big of a task to gather all need parts and "make" and engine.

If you have no experience with the GN powerplant, maybe the easiest solution would be to buy a complete motor and trans (2004r), wiring harness and ECM.

I know the first time I looked at this motor, it took me a few minutes to figure out what all the plumbing was for.. and if I had to "build" one by collecting all the correct parts, I would have been very overwhelmed.

Now, it's no big deal. In fact I have been collecting parts for some time now, and I am building another complete engine. I'm using a mid '80's 4.1 RWD block and parts from my 3.8.

Here is a great list of block casting numbers and what could be used to make an engine, 4.1 or 3.8


Either way, we are here to help..

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Stock Turbo, Stock Heads, Stock CAM, V4, MSD50's, TH DP, JayJackson 62mm TB, 16position MaxEffort Chip. 3750# with Driver
12.35 & 108.39 Street Trim
11.92 @ 111.77 Race Ready
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