Hey everyone;
Here is my question or questions. I have a 79 200ci, stock with a C-4 (high mount starter) in a Fox Mustang. I would like to get a little more performance out of it and an extra gear (overdrive) I picked up and AOD for 100 bucks and I know, I know, it won't bolt up without a lot of re-configuring things. bolt pattern, starter location, etc).
But...I have the opportunity to buy, cheaply, a 250ci out of a 70 Mustang. Low mileage and well taken care of out of Arizona. I looked up the HP. and Torque ratings on this motor and was surprised that it had 155 HP. and 240 Tq. Why is that if it has the smaller log 1240cc and 1.65 valves? Is it a better motor all together or just the fudging they were doing with the horse power and torque ratings back in the late sixties? I see all the other years of 200's and 250's seem to make sense but the 69-71 250's?
Anyhow I was thinking of buying the 250. Swapping out the heads and running the 250 head on my 200 while I drive the car (daily driver)
Then, work over the 250 block. make sure it is worthy and upgrade to ARP stuff, new oil pump, etc. And, do some work on the 200 head to make it perform better. It is the later larger log 1345cc with the 1.75 intake. Some porting milling to increase CR and maybe even a Triple carb set up (Offy?). Not set on that as of yet.
This all gives me time to get the motor to where I would want it and then I can bolt the AOD to the 250 block, run a Lokar TV cable, and I should be half way there! Is there any issue with putting the 250 head on the 200? and vice versa?
Does anyone see any issues with this plan or suggestions...good or bad.
Thanks, Randy
Here is my question or questions. I have a 79 200ci, stock with a C-4 (high mount starter) in a Fox Mustang. I would like to get a little more performance out of it and an extra gear (overdrive) I picked up and AOD for 100 bucks and I know, I know, it won't bolt up without a lot of re-configuring things. bolt pattern, starter location, etc).
But...I have the opportunity to buy, cheaply, a 250ci out of a 70 Mustang. Low mileage and well taken care of out of Arizona. I looked up the HP. and Torque ratings on this motor and was surprised that it had 155 HP. and 240 Tq. Why is that if it has the smaller log 1240cc and 1.65 valves? Is it a better motor all together or just the fudging they were doing with the horse power and torque ratings back in the late sixties? I see all the other years of 200's and 250's seem to make sense but the 69-71 250's?
Anyhow I was thinking of buying the 250. Swapping out the heads and running the 250 head on my 200 while I drive the car (daily driver)
Then, work over the 250 block. make sure it is worthy and upgrade to ARP stuff, new oil pump, etc. And, do some work on the 200 head to make it perform better. It is the later larger log 1345cc with the 1.75 intake. Some porting milling to increase CR and maybe even a Triple carb set up (Offy?). Not set on that as of yet.
This all gives me time to get the motor to where I would want it and then I can bolt the AOD to the 250 block, run a Lokar TV cable, and I should be half way there! Is there any issue with putting the 250 head on the 200? and vice versa?
Does anyone see any issues with this plan or suggestions...good or bad.
Thanks, Randy