351w swap question

[rbodine]

I've gotten two different answers and just want to be clear. I started with 302, c-4 auto. Went to Ford ordered a 351w long block, told them a 96' so it's a roller motor.
1. Can I use the same flex plate I had with my 69 302.. Thanks in advance for advice.

 

[lonesouth]

yes...both are 28oz

 

[rbodine]

Thanks, I appreciate it

 

[markperry]

Same flex plate and matching harmonic balancer

 

[thegreatjustino]

Yes, all 351s were 28oz imbalance, and 302s until the early 80s sometime were also 28oz imbalance. Your current flex plate and balancer will work fine on the 351.

 

[rbodine]

awesome, didnt know I cold use the harmonic balancer also..given its age should I just replace it with a new or reman one?

 

[KyleQ]

If the rubber looks cracked, replace it./

 

[bad 68]

If your going serpentine belt you will need a 4 bolt balancer. Good chance the one you have now is a 3 bolt.

 

[ryoungbronco]

If the rubber looks cracked, replace it./

x2 there is a harmonic balancer from summit that is both 3 or 4 bolt pattern and is about $100.
http://www.summitracing.com/parts/SCA-D-80006/

 

[Broncobowsher]

If you are going to that much work you should also research using the 5.0 Explorer front accessory drive. There are a couple ways to take care of the fact the damper will be the wrong balance, but it gets you a nice accessory drive that has plenty of room.

 

[lonesouth]

just have the balancer rebalanced. I've got a number and address you can get it done at.

 

[rbodine]

I am using explorer front, so I will look into the 4 bolt balancer

 

[rbodine]

Members here are awesome for info! I appreciate it

 

[rbodine]

Ok, so I looked at the one listed above, in the Summit link...does everyone agree that is the one I should use for explorer serp setup, 96 351w, auto c-4, 28 oz flex plate? If so I will order tomm

 

[Lmfp]

Somebodys gonna chime in but i dont think the 4 bolt works with the explorer setup. I believe that uses a one off balancer specifically for the explorer 5.0. Serpentine. Someone will chime in.

 

[rbodine]

Ok..I'll keep watchin

 

[Broncobowsher]

4-bolt won't work on the Explorer.
Explorer has the pulley cast into the damper, the only non-bolt on small block crank pulley.
Driven Auto Parts has a conversion pulley that only works on the 3-bolt damper.

 

[KyleQ]

If you are going with the Explorer setup (highly suggest - I'm rocking the Explorer front, PSC pump, Explorder radiator and Taurus fan) pull the balancer from the Explorer and send it to these guys - The Damper Dudes They can rebuild it and balance it to 28oz for ya

 

[lonesouth]

East coast alternative to Damper Dudes

http://classicbroncos.com/forums/showthread.php?t=198599

 

[rbodine]

Ok, called dampner dudes had exactly what I needed, thanks for the input.