Big block in a 40

[jaydufe]

So I put this small block 305in my 40 after the ls motor was going to be too much work , wel rear main seal went on the 305 so now I'm thinking of putting

in a 396 which I found mated to a 700r4 3 spd cruiser case ! Pros and cons or issues I know cooling is one but anything else she is to big to have a Dinky 305 in her

 

[GW Nugget]

I like the high front fenders, clean install looks stock till a closer look.
Been there with the 396, it's a load of fun. Just finish it off with a NP205 & 1 tons, you will break the Toyota stuff.
Here is my 40 from 20 years ago.
http://projectfj4door.blogspot.com/p/my-first-fj.html?m=1
Have fun.

 

[jaydufe]

Thanks had her for 22 years now since high school was stock has 4" skyjacker lift on 40's all stock original drivetrain and axels no longfields neve once have I broke anything since I owned it! Yes was thinking 1 tons cut down to cruiser width prob sly best option

 

[jaydufe]

I just read that article
Last night when I was researching info actually to fxxxing funny

 

[shelfboy1]

ran big blocks for years unless you are stupid you wont break anything ,my street racer was a 73 fj40 fst with a 501 caddy in it and a turbo 400 and l 60 15 dunlop street tires and it would walk a thunderbird like it was standing still.everyone else had camaros and gtos or vettes and this 501 beat them all

 

[SuperBuickGuy]

the 500 would be awesome in a '40. I built a 4x4 Studebaker truck with a 500 caddy in it. I sold the motor to a guy who's building a suburban. I had the 425 heads (which raise the compression on the 500 to 9ish:1) - he's building it instead of going diesel. I think he's right in his assessment - that the mileage will only be 25% less than a diesel but will have all the diesel torque. Those things are monsters stock, raise the compression, a decent intake (that doesn't make the air flow uphill), and some headers and 500/500/500 would be easily achievable (500ci, 500hp, 500tq). I even briefly considered using the 500 in my build - but then he came along and offered me enough money to send it to a new home.

I got into 500s because of an acquaintance that's been running them at Bonneville since the mid-70s (and setting records).

that said... a 396? you do like the less-favored power plants? it'd be a good cruiser motor because the small bore/long stroke - but shrouding would really limit its hp potential.

 

[shelfboy1]

500 caddy 525 ft lbs of tourque at 2400 rpms

 

[croozy]

I had a 283 in mine until it detonated. I was going to put a 396 in it until I found a 406 small block. I we with it so I didn't have to relocate my steering box and other stuff. I have a 4l60 behind it too.

 

[AutoCraft Aus]

I had LS7 454 with headers, cam, all the good bits, in my 40 on 36 and 38s, using 60 housings, 40 cv's, 60 t case, and 75 power steering back in about 1998.

Drove it like it was stolen in the bush, was awesome, ran a Qjet 850 cfm so it got good on road economy, and could throw real estate out the back like there was no tomorrow.

I had a 383 in the 40 before that, and 350 modded 45 series before thata s well, everyone shgould have a big block at least once in their life !