Thread: stroking a 3.5 motor

Originally Posted by 6.5rangie

I agree, mine handles great

How would you know

Originally Posted by rovercare

Ever put a bullbar and winch on your vehicle??, well if you have, you've screwed the weight distribution up more than a cast iron block

Most critiscism i've heard are usually from those that have never had one themselves

And a bull bar and winch puts the weight even further forward.....
An Isuzu 3.9 is about the same as a SBC which is about 50kg more than a Rover V8. AFAIK, 110's with the Isuzu have reinforced chassis mounts....

I have a stroked 3.5 (now a 4.3) in my 110. It goes well enough (it has RR transfer gears to raise the gearing which it still pulls easily). Even so, I often wish it was a 350 Chev. They are reliable, as cheap as a Holden to rebuild, very compact (for the capacity) and in stock form have almost double the power and torque of a 3.5 with a HUGE range of cheap performance parts available.

Using a carbed 350, the chev conversion can be done for about $2000 plus the engine. This is less than what the stroker kit is going to cost you and then you will still need to do a full rebuild on the 3.5 which will be more than a good used 350. $2000 includes adaptor kit, engine mounts, headers, clutch, radiator mods and a manual flywheel. To do it justice you would probably also need 0.996 transfer gears to reduce the crusing revs.

Originally Posted by rovercare

How would you know

Well i think it does, its been that long since i drove it last










Which was yesterday

3.9s are the same or worse than 4.0 and 4.6.
It is the bore increase that is the problem, leaving too little material around the bore/sleeve if not accurately cast.
My 3.9 is OK so far at 135K, but I am paranoid about engine temp.
Regards Philip A

Originally Posted by 6.5rangie

Well i think it does, its been that long since i drove it last










Which was yesterday

How is it in the bush but?

Originally Posted by mark2

And a bull bar and winch puts the weight even further forward.....
An Isuzu 3.9 is about the same as a SBC which is about 50kg more than a Rover V8. AFAIK, 110's with the Isuzu have reinforced chassis mounts....

I have a stroked 3.5 (now a 4.3) in my 110. It goes well enough (it has RR transfer gears to raise the gearing which it still pulls easily). Even so, I often wish it was a 350 Chev. They are reliable, as cheap as a Holden to rebuild, very compact (for the capacity) and in stock form have almost double the power and torque of a 3.5 with a HUGE range of cheap performance parts available.

Using a carbed 350, the chev conversion can be done for about $2000 plus the engine. This is less than what the stroker kit is going to cost you and then you will still need to do a full rebuild on the 3.5 which will be more than a good used 350. $2000 includes adaptor kit, engine mounts, headers, clutch, radiator mods and a manual flywheel. To do it justice you would probably also need 0.996 transfer gears to reduce the crusing revs.

Good to see there is some realists about, i'll sell him a good running 350 with adaptor for either 4 or 5 speed for 1k mmm not sure if LT77 bellhousing is the same as LT85

I think we can all agree that the little 3.5 is the sweetest and most reliable of the engines avail for a RR or 110, but it could do with some more torque and power etc. I am always amazed at the performance of such a little engine, but it just can't cut it when it comes to pulling a heavy load or grunting up long hills. A great pity this.



Go the small block.


JC

Is there much difference in the total engine lengths with adapters and fans when using Chevs or Holdens in comparison to the Rover V8?