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Sep 17, 2011 | 04:31 PM

deve

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351 parts

are their any differences in the timing chain cover on 351 and 302 motors also on harmonic balancer in any years they were made

Sep 17, 2011 | 05:33 PM

96ford250

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the timing chains are the same but i know 351w's changed their counter balance over the years so i cant be for sure on that part.

Sep 17, 2011 | 07:03 PM

deve

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well i bought a 351 off of a friend and it had the harmonic ballancer flew off and broke the timing chain so now i am wondering if i can just go to the salvage and pull one for a 302

Sep 17, 2011 | 07:11 PM

NumberDummy

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From: Simi Valley, CA

Quote:

Originally Posted by deve

are their any differences in the timing chain cover on 351 and 302 motors also on harmonic balancer in any years they were made

What years are the 302 the 351W? Harmonic balancers have stamped ID numbers marked on them, what is the number on yours? The number will be found on the damper, not the pulley.

The balancer is composed of three parts. At the factory, a rubber gasket is placed between the damper and the pulley, then all three parts are pressed together forming a one piece assembly.

The rubber gasket age cracks/shrinks, causing the outer pulley to "walk away" from the inner damper.

Sep 17, 2011 | 07:15 PM

deve

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not sure what year my motor is early 90 just wondering on the 302 or 351 what years i can use

Sep 17, 2011 | 08:29 PM

deve

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when i bought it he did not have the harmonic balancer it shot off going down the highway

Sep 17, 2011 | 08:42 PM

NumberDummy

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Quote:

Originally Posted by deve

not sure what year my motor is early 90 just wondering on the 302 or 351 what years i can use

When a balancer comes apart, only the outer pulley comes off, because the inner damper is bolted to the crankshaft.

Since there are different balancers and you aren't sure what year the engine is, I need the ID number off the damper (will have a 4 digit prefix-6316-and a one or two digit suffix).

I cannot help you without the ID number.

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Sep 18, 2011 | 07:45 AM

96ford250

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i know its like a sin on here but im going to have to disagree with you conanski the timing cover doesnt have anything to do with the main bearings it holds the front main seal. and all timing covers are interchangeable between the 289,302, and 351w. the only difference is the coolant flow direction, dipstick placement, and fuel pump boss.

Sep 18, 2011 | 08:23 AM

#10

NumberDummy

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E7TZ-6019-A .. 302/351W Timing Cover / 1987/94 E/F150/250 & Bronco 302 / 1988/94 E/F150/350 & Bronco 351W.

F6TZ-6019-NA .. 302/351W Timing Cover / 1995/96 E/F150/250 & Bronco 302 / 1995/96 E/F150/350 & Bronco 351W.

F3TZ-6020-A (replaced C2OZ-6020-A) .. Timing Cover Gasket / 1962/63 221/260 / 1963/65 260/289 / 1966/68 289 / 1968 302 / 1969/96 302/351W / 1981/83 255.

Sep 19, 2011 | 11:40 AM

#11

Conanski

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Quote:

Originally Posted by 96ford250

Alrighty.

So you made me go confirm this for myself and best I can tell looking at my engines is you're right. I know the oilpans are not interchangable between these motors so I was thinking that affected the front cover too, but it appears the only difference with the oilpans is at the rear main seal while the front seal radius is the same for both motors. Hey.. wasn't the first time I got something wrong and it doesn't really matter to me as long as the guys asking the questions get the correct info.

Sep 19, 2011 | 05:02 PM

#12

96ford250

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From: Northeast Ohio

Yea the only reason i really know that is that the aftermarket cover for a mech fuel pump and serp belt is based off a 1965 289 mustang timing cover

Sep 19, 2011 | 06:40 PM

#13

NumberDummy

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Which 1965 Mustang 289 timing cover would that be?

1965 Mustang (and etc) 289: There are two different timing covers, two different waterpumps, the parts do not interchange because there are two different engine blocks.

Sep 19, 2011 | 06:47 PM

#14

96ford250

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im pretty sure its a "Hi-Po" but i cant be sure. the after market cover looks like this ill try to find an actual one though.

JEGS Performance Products 50300 JEGS Cast Aluminum SB-Ford Timing Covers