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Author
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Topic: Anyone running a 393 with stock rods?
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68DARKHORSE
Gearhead Posts: 422
From: Austin, Tx
Registered: Aug 2002
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posted 11-06-2002 01:11 PM
   
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 ------------------
Alton 68 GT FASTBACK J code
http://www.imboc.com/phpBB/Uploads/1020432917.jpg
01 GT BULLITT http://www.imboc.com/phpBB/Uploads/1020440453.jpg
96 OJ BRONCO
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Clark
Gearhead Posts: 674
From: Rowlett,Texas
Registered: Aug 99
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posted 11-06-2002 01:48 PM
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. ------------------
69 393W Sportsroof Deluxe
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68 S-code GT
Gearhead Posts: 2416
From: Sayreville, NJ, US
Registered: Mar 2000
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posted 11-07-2002 07:55 AM
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
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posted 11-07-2002 09:54 AM
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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