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post #1 of 3 Old 05-01-2012, 03:09 PM Thread Starter
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1985 CJ7 
Join Date: Jul 2010
Location: PEI Canada
Posts: 18
350 into CJ

This must have been talked about many times but I want to put a V8 into my '85 CJ-7. Could someone recommend a particular year donor vehicle to buy. I want something anyone could get in (wife) and turn the key and go and not have to screw around with a choke (winter in canada). Should I be looking for early '90s chev 4x4 with 350. I know I should keep my dana 300 but should I go with the donor trans or have my torqueflight 904 rebuilt/beefed up. I will either need an adapter for the transfer case or the transmission. A friend said I can have his '88 chev 2 wheel drive pickup with a 305, (70,000 miles) would it be worth using or should I look for a 350 with 4X4. I want an automatic transmission. Is there any sense considering a ford or dodge?

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post #2 of 3 Old 05-07-2012, 01:53 PM
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1983 CJ7 
Join Date: Oct 2011
Location: Tacoma
Posts: 49
I am in the middle of shoehorning a 350 with a 700r4 tran in a 83CJ7. I used a 1988 chevy 2wheel and bought a advance adapter to the 300 trans I was told that the chevy tail adapter to the transfercase works with some modifacation to a couple of holes but you have to buy a spline adapter. On the Advance Adapter web Page there is vehicle config and this helps. as far as wiring there is a great post on the binder planet web site on tbi and computer from bill usn-1. I am off the next couple and I may get my build pictures up posted.
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post #3 of 3 Old 05-08-2012, 05:29 AM
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1971 CJ5 
Join Date: Jan 2002
Location: Eagle Point
Posts: 7,409
I just checked your profile (thanks for filling it out BTW). If power is the issue, running 35" with 3.50 gearing is going to suck the life out of any motor. A viable alternative to an expensive and entailed engine swap is to do a gear swap. A set of 4.11's or 4.88's would Wake the 258 back up. Couple that with an MC carb upgrade, you hav e a very reliable , moderately powerful engine with minimum of effort.
That being said, there are a number of options. Do a search up in the CJ forum, there are a couple of build posts that revolve around SBC Chevy swaps.
I'm not a fan of the 305 and would never spend the cash on one, but for free it is as good a start as any.
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