Author Topic: Timing Chain Cover  (Read 5452 times)

jrm3

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Timing Chain Cover
« on: August 19, 2015, 05:52:57 PM »
Team,

Can you guys furnish me the original part number for a big block timing chain cover please?  Does anyone know of one that I could purchase?

Please advise

Tre'

rare396bronze

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Re: Timing Chain Cover
« Reply #1 on: August 19, 2015, 11:52:15 PM »
What year,325,350 or 375 hp.

69Z28-RS

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Re: Timing Chain Cover
« Reply #2 on: August 20, 2015, 02:07:18 AM »
Does the timing chain cover vary across those HP values???   THAT would surprise me.. (not that I'm a BB expert).. :)
09C 69Z28-RS, 72 B 720 cowl console rosewood tint
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z28z11

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Re: Timing Chain Cover
« Reply #3 on: August 20, 2015, 02:29:01 AM »
Yep - low horse has a smaller diameter balancer, thinner, too - just like the low horse small blocks as compared to the Z. I believe the 375 horse is an 8.00" like the Z's (mine is missing in action, one of the few things I have left to source), timing cover is obviously different.

Regards,
Steve
1968 Z28 M21/U17 BRG/W 1967 Chevy ll Nova SS 
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1969 L78 X66/N66 Cortez/BVT
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69Z28-RS

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Re: Timing Chain Cover
« Reply #4 on: August 20, 2015, 03:39:54 AM »
Thanks Steve... :)    now I'm going back to my small blocks..  :)
09C 69Z28-RS, 72 B 720 cowl console rosewood tint
69 Corvette, '60 Corvette, '72 Corvette
90 ZR1 red/red #246, 90 ZR1 white/gray #2466
72 El Camino, '55-'56-'57 Nomads, '55-'57 B/A Sedan

jrm3

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Re: Timing Chain Cover
« Reply #5 on: August 20, 2015, 02:49:06 PM »
This would be for a ZL-1 427 aluminum engine

rare396bronze

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Re: Timing Chain Cover
« Reply #6 on: August 25, 2015, 03:34:17 AM »
396/375hp timing cover# is 3935444. Read in Jerry's book 396/375 & 427 took same balancer so I would think timing covers would be the same. Hope this helps.

JohnZ

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Re: Timing Chain Cover
« Reply #7 on: August 26, 2015, 03:24:15 PM »
In the Corvette applications, the hydraulic-lifter engines used the 7" balancer and the solid-lifter engines used the 8" balancer.
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ko-lek-tor

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Re: Timing Chain Cover
« Reply #8 on: August 26, 2015, 08:52:44 PM »
In the Corvette applications, the hydraulic-lifter engines used the 7" balancer and the solid-lifter engines used the 8" balancer.
This applies to ALL applications of passenger cars regarding the 396 (402) & 427. All 454's use an 8in. balancer with an internal counterweight made for the 454 ONLY.
Bentley to friends :1969 SS/RS 396 owned 79
1969 SS 350 (sold)
1969 D.H.COPO replica 4spd. owned since 85
1967 302 4 spd 5.13

L78 steve

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Re: Timing Chain Cover
« Reply #9 on: August 27, 2015, 10:37:06 PM »
In the Corvette applications, the hydraulic-lifter engines used the 7" balancer and the solid-lifter engines used the 8" balancer.
This applies to ALL applications of passenger cars regarding the 396 (402) & 427. All 454's use an 8in. balancer with an internal counterweight made for the 454 ONLY.

External.
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ko-lek-tor

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Re: Timing Chain Cover
« Reply #10 on: August 28, 2015, 12:09:06 AM »
In the Corvette applications, the hydraulic-lifter engines used the 7" balancer and the solid-lifter engines used the 8" balancer.
This applies to ALL applications of passenger cars regarding the 396 (402) & 427. All 454's use an 8in. balancer with an internal counterweight made for the 454 ONLY.

External.

Internal-meaning not seen from the external, front, outside side, meaning the weight is inside of the backside of the balancer. Only talking about balancers here, not how engines are balanced. Thanks.
Bentley to friends :1969 SS/RS 396 owned 79
1969 SS 350 (sold)
1969 D.H.COPO replica 4spd. owned since 85
1967 302 4 spd 5.13

 

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