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Author Topic:   Interchanging crank shafts
TRAP
Dirt Full Roller

Total posts: 34
posted July 08, 2002 05:55 PM  
I have found two motors that I am attempting to match up into the best combo I can make. One of the motors is out of a 2.3 ranger with multiport fuel injection(illegal at the track I run) and a 76 mustang carburated 2.3 liter.

I was considering taking the crankshaft and rods out of the ranger and trying to work them into the old mustang block. I disassembled both and have now found that the crank journals on the ranger 2.3 is smaller than the journals on the mustang2.3

I noticed oiling ports on the rods from the ranger but none on the mustang rods.

Is there a fix to make the ranger crank work in the mustang block and is it an advantage to do so or am I wasting my time trying. I know this has been done before and I dont know if it is possible or reasonable to pursue the crank switch or just go back with the stock crank. (needs polishing)

Thanks for any advice in advance

TRAP

fast phill
Dirt Full Roller

Total posts: 30
posted July 08, 2002 07:03 PM  
just put the head off the old one on the newer ranger block it will bolt right on.no problem.

TRAP
Dirt Full Roller

Total posts: 34
posted July 08, 2002 07:11 PM  
The problem with using the ranger block is that it is electronically trip fired by the crank I think. It is not a legal motor for my class. I wish it was that easy. Thanks

TRAP

wildcat4257
Dirt Maniac

Total posts: 127
posted July 09, 2002 05:00 AM  
Trap,
that motor is fired using the crank. you can also put the crank you want into the other block. they make bearing inserts just for this. check out RACE ENGINEERING. They have good stuff. running 2nd year on one of their bottom halves and it has never been touched. checked it out this winter and still looked brand new, could still see crosshatch in cylinder walls. anyway check with them, they have what you need.
1-561-533-5500
their website is: raceeng.com/
WILDCAT

[This message has been edited by wildcat4257 (edited July 09, 2002).]

TRAP
Dirt Full Roller

Total posts: 34
posted July 10, 2002 03:56 PM  
wildcat,
I did check on it and they can make it work. But was also told that it wasnt a real advantage to it. The crank is lighter due to the smaller journals , but the swing weight of the crankshaft is about the same as the stock crank from the mustang. I dont really know what else may be different but im all ears. BTW it will be cheaper to polish the original crank than to adapt it.

Thanks again.

TRAP

wildcat4257
Dirt Maniac

Total posts: 127
posted July 11, 2002 05:32 AM  
CAN YOU LIGHTEN THE CRANK? I MEAN WILL YOUR RULES ALLOW IT? IF SO A LIGHT 2300 IS A BAD LITTLE DUDE. WE RAN ONE IN STOCK FOR A WHILE AND IT WAS ALOT QUICKER THAN MOST OF THE OTHER CARS. WON SEVERAL RACES WITH IT.
WILDCAT

[This message has been edited by wildcat4257 (edited July 11, 2002).]

TRAP
Dirt Full Roller

Total posts: 34
posted July 11, 2002 04:05 PM  
Lightening the crank is what I thought the ranger crank would do. It is probably illegal to do anything to the crank but I personally wouldnt submit to a protest in my class. 1st place only pays 100$, and I would just a soon pull it on the trailer than to tear it down for a c note. BTW the protest fee is also a hundred dollars. I am considering lighter rods and pistons and probably gonna go back with the stock crank. I have heard of people wanting to put the ranger crank in the mustang but it must be a 2.5liter crank and building a stroker. In the research I did, there was no apparent advantage other than the pistons and I can match that with the crank I have.

TRAP

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