Outer Limits 4x4 Board

Ok i have been offered a brand new 4.0 short motor at a reasonable price to replace my 3.5 bottom end with a snapped crank.

Has anyone fitted the 3.5heads and Flap style EFI to the 4.0 bottom end?
Are there any problems im going to have? Will it all bolt straight on?

I know the heads of a carby 3.5 fit, you just leave out one row of head bolts on the outside, i had to modify the a/c bracket for the side main bolt, and there's a dowl in the crank that wasn't in my fly wheel, but that was about it.

So you have done this? How does it run? Is it an improvement in power or economy?

Started the car for the first time last night, so haven't really had a chance to drive it yet. There's a problem with the new clutch so it'll be after the weekend before i get that sorted out. Apart from an exhaust leak and a few other little things it seems good.

Peter

I put a 4.6 short motor in my 84 rangie a few years ago. I used the 3.5 heads.

Can't really add much to what Peter said. I made the mistake of not drilling the block for the breather at the back and had to fit a drop out box for the breathers from the rocker covers.

So what is a reasonable price for a 4ltr short block ? Peter, is your 85' an auto with the torque flite ? , how does it go now ?

thanks,
Nick.

Loanrangie wrote:So what is a reasonable price for a 4ltr short block ?

thanks,
Nick.

$2000 for a brand new short block from torak tractors. But i ended up buying a complete early disco 3.5efi with ZF and LT230 for the same money.

Peter.

That sounds like what i need to get the t/f going!

thanks,
Nick.