Compatable donor for 200 I6

[rae61]

I'm looking for a little help in finding a suitable donor of 200 I6 to replace the 170 in my 71 bronco.
There are two for sale in my area, one from a 66 Mustang and the other a 78 Granada, would one be
better suited for my application than the other? Both are in similar condition and are running engines,
I will be rebuilding it in the future though. They are asking $200 more for the Mustang.
Thanks for any information.

 

[CoupeBoy]

go for the newer one
dual pattern drilled bellhousing (guarenteed)
larger intake log
see if they will toss in the Duraspark II distributor and wiring
hardened valve seats

1 quick question.. how many freeze plugs you got on the passenger side of that 170?

-ron

 

[rae61]

Ron, that's the kind of information I'm looking for, Thanks.
I have 3 frost plugs on my 170.

 

[rocklord]

I agree with CoupeBoy and for every reason he noted.

If you got the 78 engine, I would upgrade the carb. The 1Bbl from that era would be smogged and not as desirable.

Good luck and have fun.

 

[rae61]

Looks like the motor out of the 78 Granada was a 250, I had the seller check the water pump and it had four bolts.
He though he had a 200, I did some more checking and it looks like 77 was the last year for the 200 in the Granada.

To bad that would have been a good deal, well back to looking

 

[Explorer]

Why not use the 250? Don't know where you are, but I've been looking for one.

 

[rae61]

The 250 would be great but from what I understand for it to work in a Bronco you need to change the oil pan
since there are no bolt on swaps you need to fabricate one, and add a body lift since the 250 is taller than
the 170 or 200.

I'm in Alberta Canada and it is hard to find 200 CID engines around here.