Ford 302 crank

RobbieRacer · 05-25-2016, 08:49 AM

Ford 302's came with a 28oz imbalance crank till 81 (i think). After that a 50oz crank. I'm building a 79. Can I use a 50oz crank or does it have to be 28oz?

Jeff Blanchard · 05-25-2016, 09:14 AM

The crankshafts approved for each year, make, and model, are listed by number in NHRA Racer, Technical Section, Engine Blueprint Specifications. That should easily answer your question. If I was building an engine, I would become very familiar with this material.

Lou Jeffery · 05-25-2016, 09:19 AM

If you are going to use a production 50 oz. crankshaft there is no issue. Heads and intake are the only critical parts to vintage, any year block, crank.

RobbieRacer · 05-25-2016, 09:29 AM

Thanks Lou, thats good news. i have a 88 block and crank given to me that looks like new. I was hoping I could use it. I have the right heads and intake.

Quote:

Originally Posted by Lou Jeffery

If you are going to use a production 50 oz. crankshaft there is no issue. Heads and intake are the only critical parts to vintage, any year block, crank.

Sean Marconette · 05-25-2016, 01:25 PM

Lighter is better, or internally balanced. It does not matter on the crank what vintage it is, as long as the stroke is within blueprint specs. It would be a good idea to have the crank checked. I had a cast crank break on the dyno and it pushed the front of the block out.

If your 50oz is what you have then your good. You just need the matching flywheel of flex plate.

Sean

Chris1529 · 05-25-2016, 02:01 PM

spend the money and get a good balancer no matter which crank you use. Don't use one of the factory balancers unless you don't plan to run much rpm.

05-25-2016, 08:49 AM	#1
RobbieRacer Member Join Date: Jul 2012 Location: Phoenix, Az Posts: 320 Likes: 17 Liked 118 Times in 41 Posts	Ford 302 crank Ford 302's came with a 28oz imbalance crank till 81 (i think). After that a 50oz crank. I'm building a 79. Can I use a 50oz crank or does it have to be 28oz? __________________ U/SA 79 Mustang

05-25-2016, 09:14 AM	#2
Jeff Blanchard Junior Member Join Date: Apr 2015 Location: Lowell, Indiana Posts: 35 Likes: 0 Liked 0 Times in 0 Posts	Re: Ford 302 crank The crankshafts approved for each year, make, and model, are listed by number in NHRA Racer, Technical Section, Engine Blueprint Specifications. That should easily answer your question. If I was building an engine, I would become very familiar with this material. __________________ Jeff Blanchard 353C / Stock

05-25-2016, 09:19 AM	#3
Lou Jeffery Junior Member Join Date: Nov 2013 Posts: 91 Likes: 0 Liked 0 Times in 0 Posts	Re: Ford 302 crank If you are going to use a production 50 oz. crankshaft there is no issue. Heads and intake are the only critical parts to vintage, any year block, crank.

05-25-2016, 01:25 PM	#5
Sean Marconette Senior Member Join Date: Mar 2006 Posts: 977 Likes: 796 Liked 275 Times in 76 Posts	Re: Ford 302 crank Lighter is better, or internally balanced. It does not matter on the crank what vintage it is, as long as the stroke is within blueprint specs. It would be a good idea to have the crank checked. I had a cast crank break on the dyno and it pushed the front of the block out. If your 50oz is what you have then your good. You just need the matching flywheel of flex plate. Sean __________________ Sean Marconette 84 Mustang 5060 SS/N

05-25-2016, 02:01 PM	#6
Chris1529 VIP Member Join Date: Dec 2006 Location: West Virginia Posts: 1,366 Likes: 6 Liked 70 Times in 29 Posts	Re: Ford 302 crank spend the money and get a good balancer no matter which crank you use. Don't use one of the factory balancers unless you don't plan to run much rpm. __________________ Chris Bowman The Mountain State Mustang 1984 Mustang GT350