I Do This For The Glory
Join Date: Dec 1999
Location: Nobleboro, Maine
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Re: New to Zuki\'s
Not the same engine.
The GM 151 was made for 1/2 a year in '80, all of '81, and 1/2 a year in '82. It shares the same bolt pattern as the Smallblock Chevy engines. The good news is you can get Marine parts to bump the horsepower from 85 to about 250, but I imagine it won't last long at that compression.
You have the F-head (diagram of the valves) 134 engine, not even close to being the same.
You have a 4 speed on the floor? Not in a Tuxedo Park (unless it was a swap job), they all had 3 on the tree. Your best bet if you want a little more power and a little newer engine than the F-134 is to look for the 2.3L out of a Ford (Pinto and other smaller cars), it's almost a direct swap.
I tell you what, if you really have a 4 speed on the floor, I'll swap you a whole drivetrain, including a 3 speed for it, and something a little more modern.
In case you're wondering why, the 4 speed is the T-98 tranny, which was VERY rare. They are popular with the flatfender crowd as they have a 6.4:1 first and could be swapped behind the L-134 (flathead) that came in the flatfenders. The T-98 is the predecessor to the venerable T-18/A and is a nice tranny, it just uses bushings where the T-18/A uses bearings. Why, yours has 85:1 crawl right from the factory! I have seen people refuse to sell theirs for $1,000, personally I would have ditched it, but it is a highly sought after tranny.
The F-134 put out 72 horsepower when new, so it's a little weak, but then the CJ-5 only weighed 2,000 pounds anyway.
How's this sound. Take the T-98 and D-18 out of the jeep and swap them into the Zuk. They'll fit behind the stock tranny, so you'll run 2 trannies and a transfer, and the D18 transfer even has a drum mounted E-brake on it, so you can swap the rear discs onto the D44 when you swap that in as well. All you'd need is a front D30 with 5.38 gears. Imagine, you'd have 309:1 crawl, and infinite ranges in between, right up to the 1:1 final drive. Now how much better than that can it get?
Of course, for tearing apart a Tuxedo Park (if that's what it is), you'll have every jeep nut within 10 states gunning for you, but that's half the fun of it.
Winter Harbor, Maine
'81 CJ-8 Scrambled, It's a Jeep, Chevy, IHC kinda thing!
'88.5 Zuki, 7" Lift, Locked, Swamped, Rolled, and just generally broken in right!