I've got a 76fj with a very tired and 43 year old chevy 283, otherwise it's a stock drivetrain. I'm going to put in a new motor. The search function revealed a few people arguing for a lot of hp, up to 400 hp. My question is just how much hp/torque can the STOCK drive train handle? I'm running 33 inch MT/R and 4 inch lift. This is for a daily driver and occasional off road use. I'm not a rock crawler. MPG is not an issue. Thanks, Dave
How much power is too much for stock drivetrain?
- Thread starter fatalbert
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Alot depends on how hard you run it. I have seen stock F/2F engines break axles. Then again I had a '74 with a turbocharged 350 putting 600 hp to the wheels and never broke any of the stock drivetrain. Maybe I was just lucky. The v12 in the '68 I have now hasn't broken anything yet, at least not from the clutch back.
- Thread starter
- #3
Jagota, I'd love to hear either of those beasts! Thanks for the info.
yup,
Im my 60 i have busted 2 rear axle shafts and 1 birf with my all stock and very wore out 2F first axle was with a locker and 35s out back and 3.70's 2nd axle and birf was locked front and rear with 4.56's
A buddy of mine (and a member on this board) busted a front birf with open difs in his 100% stock FJ62
so id say it all depends on how you drive em.
I wheel my 60 and enjoy crawling with it and often times try to go places i shouldnt.
that said sometimes im a little more than hard on the old girl.
- Thread starter
- #5
Thanks for the input. I'm getting the picture. I think I'll go for some old fashioned gas guzzling power. i drive "the Mistress" (wife calls her that) with respect, usually.
i drive mine fairly calmly with the big tires and sbc . or should i say how i should with the axle combonation .
keep the front tires straight when you do something stupid and don't get the vehicle hopping .
i will buy chromo's all around next year . but for now im doing fine just driving calmly , it has involved winch use a little more then it should but it keeps the interior cleaner with no top and doors .
keep the front tires straight when you do something stupid and don't get the vehicle hopping .
i will buy chromo's all around next year . but for now im doing fine just driving calmly , it has involved winch use a little more then it should but it keeps the interior cleaner with no top and doors .
ran a 501 caddy and a 455 pontiac ho on the street for years back in the 70s no 4 speeds or disc brakes.the trucks were way fast with dunlop l 60s on all 4 corners .sheared the rear drive shaft bolts once .they will take some abuse but will break if hammered on .good luck
heres what 700 to 800 hp sounds like and did not brake anything. YouTube - bad ass fj40 9
- Thread starter
- #9
That was awesome! A little too manly for "the mistress", but I'll bet you could make the tires HOWL.
