CRG Discussion Forum

Camaro Research Group Discussion => General Discussion => Topic started by: jrm3 on August 19, 2015, 05:52:57 PM

Title: Timing Chain Cover
Post by: jrm3 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'
Title: Re: Timing Chain Cover
Post by: rare396bronze on August 19, 2015, 11:52:15 PM: What year,325,350 or 375 hp.
Title: Re: Timing Chain Cover
Post by: 69Z28-RS 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).. :)
Title: Re: Timing Chain Cover
Post by: z28z11 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
Title: Re: Timing Chain Cover
Post by: 69Z28-RS on August 20, 2015, 03:39:54 AM: Thanks Steve... :) now I'm going back to my small blocks.. :)
Title: Re: Timing Chain Cover
Post by: jrm3 on August 20, 2015, 02:49:06 PM: This would be for a ZL-1 427 aluminum engine
Title: Re: Timing Chain Cover
Post by: rare396bronze 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.
Title: Re: Timing Chain Cover
Post by: JohnZ 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.
Title: Re: Timing Chain Cover
Post by: ko-lek-tor on August 26, 2015, 08:52:44 PM: Quote from: JohnZ 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.
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.
Title: Re: Timing Chain Cover
Post by: L78 steve on August 27, 2015, 10:37:06 PM: Quote from: ko-lek-tor on August 26, 2015, 08:52:44 PM
Quote from: JohnZ 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.
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.
Title: Re: Timing Chain Cover
Post by: ko-lek-tor on August 28, 2015, 12:09:06 AM: Quote from: L78 steve on August 27, 2015, 10:37:06 PM
Quote from: ko-lek-tor on August 26, 2015, 08:52:44 PM
Quote from: JohnZ 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.
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.