CRG Discussion Forum

Camaro Research Group Discussion => Research Topics & Reports => Topic started by: bcmiller on September 26, 2023, 09:37:39 PM

Title: 186 and 041 heads used for 1969
Post by: bcmiller on September 26, 2023, 09:37:39 PM

Does anyone have an original car with either head usage?

041 heads on a Z28.

186 heads on an L48 - SS 350.

Title: Re: 186 and 041 heads used for 1969
Post by: 68L30 on September 28, 2023, 09:28:14 AM

68 0702EE 07E with 041’s…..June 68 cast dates. Very very early..

Steve

Title: Re: 186 and 041 heads used for 1969
Post by: KurtS on September 28, 2023, 08:14:51 PM

I know that Jerry has seen at least one 041 head on a 69 Z that he thought was original.

I have 186 heads that I pulled off of a L48 from a Caprice. Never seen them in a Camaro though....

Title: Re: 186 and 041 heads used for 1969
Post by: Stingr69 on September 28, 2023, 09:45:29 PM

I think the "186" heads were used by Flint and the "041" heads were used by Tonawanda. 

Title: Re: 186 and 041 heads used for 1969
Post by: KurtS on September 30, 2023, 05:24:35 AM

I believe that's the case, but don't have proof. That Caprice L48 was Flint.

Title: Re: 186 and 041 heads used for 1969
Post by: bcmiller on October 04, 2023, 02:22:34 AM

Well I sincerely doubt that was the only L48 assembled at Flint then.

Title: Re: 186 and 041 heads used for 1969
Post by: JL8Jeff on December 12, 2023, 10:04:14 PM

Here's a 350/300 engine code HN I saw on FB that says original and has 186 heads.  But who knows what could have been swapped around if it was rebuilt.  The head date does match the block really well though and it's a Flint engine.

https://www.facebook.com/marketplace/item/1043501920131277/?ref=search&referral_code=null&referral_story_type=post&tracking=browse_serp%3Ad1d8d335-cfe1-4b05-b0b0-b0cade3cdd5e

Title: Re: 186 and 041 heads used for 1969
Post by: bcmiller on December 13, 2023, 12:37:38 AM

Thanks for posting that!

Title: Re: 186 and 041 heads used for 1969
Post by: KurtS on December 14, 2023, 04:31:25 PM

Thanks! That is one more datapoint that confirms what was put into the head report:
> The 3947041 was a Tonawanda casting that was used in the L48 engines built at Tonawanda. The 3927186 head was used for the Flint-built L48 and Z28 applications.

Title: Re: 186 and 041 heads used for 1969
Post by: bcmiller on December 14, 2023, 04:52:05 PM

Block casting for the engine pics above the JL8Jeff posted is 3956618