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  '64 1/2 to '73 -- The Classic Mustang
  Anyone running a 393 with stock rods?

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Author Topic:   Anyone running a 393 with stock rods?
68DARKHORSE
Gearhead

Posts: 422
From: Austin, Tx
Registered: Aug 2002

posted 11-06-2002 01:11 PM     Click Here to See the Profile for 68DARKHORSE   Click Here to Email 68DARKHORSE     Edit/Delete Message   Reply w/Quote
The FRPP catolog has a crack that uses stock 351W rods with 302 pistons. I was wondering if anyone used this combo and how long it's been holding up.

Thanks

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Alton

68 GT FASTBACK J code

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01 GT BULLITT

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96 OJ BRONCO

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Clark
Gearhead

Posts: 674
From: Rowlett,Texas
Registered: Aug 99

posted 11-06-2002 01:48 PM     Click Here to See the Profile for Clark   Click Here to Email Clark     Edit/Delete Message   Reply w/Quote
This is the setup I have in my motor, except the stock rods I used were shot peened, balanced and fitted with arp bolts.

I have not ran the engine more than break in runs and some tunning problems I had, but with the new Demon I have it should get me close to driving.

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69 393W Sportsroof Deluxe

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68 S-code GT
Gearhead

Posts: 2416
From: Sayreville, NJ, US
Registered: Mar 2000

posted 11-07-2002 07:55 AM     Click Here to See the Profile for 68 S-code GT   Click Here to Email 68 S-code GT     Edit/Delete Message   Reply w/Quote
What kind of 302 pistons and heads are you running? Also do you know what the resultant compression ratio of your combination?

quote:
Originally posted by Clark:
This is the setup I have in my motor, except the stock rods I used were shot peened, balanced and fitted with arp bolts.

I have not ran the engine more than break in runs and some tunning problems I had, but with the new Demon I have it should get me close to driving.


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Clark
Gearhead

Posts: 674
From: Rowlett,Texas
Registered: Aug 99

posted 11-07-2002 09:54 AM     Click Here to See the Profile for Clark   Click Here to Email Clark     Edit/Delete Message   Reply w/Quote
I purchased some stock dished pistons from the machine shop because with my setup compression was getting to high with a flat top.I have the stock 60cc 69 heads with a port and polish job.

The compression ratio was the biggest obstacle, being a stock 69 351W the compression ratio was 10.7 to 1 to start with. So with the increased stroke I had to compensate with dished pistons vs. flattops to keep it close to the same or near 11.

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