1969 Z-28 041 heads

budnate · #1 08-25-2005, 08:24 AM

1969 Z-28 , 2.02 Heads Complete, 3947041, dated D/11/9 & J/8/8, told only been rebuilt once and he had them done, washed them up and glass beaded the surfaces and everything looks fine, you get the same warranty I got, None, you need to be comfortable buying them “as is” like I did, $275.00, only thing screwy, is two of the ex guides slide down out of the place and are hanging down, many detailed pics for the buyer.

budnate · #2 08-25-2005, 08:29 AM

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budnate · #3 08-25-2005, 08:29 AM

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budnate · #4 08-25-2005, 08:30 AM

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rsatz28 · #5 08-25-2005, 04:19 PM

Bud, You have a PM.

budnate · #6 08-25-2005, 07:48 PM

SOLD- pending payment.

**Lynn** · #7 08-26-2005, 12:44 AM

Bud:

I also have an extra set of 041 heads, but have been reluctant to advertise them as being correct for a Z/28 even though Colvin's book states they were interchangeable with the 186 heads. I am NOT implying you should not have listed them as such, but am just curious. Have any original Z/28's been documented with 041 heads? Frankly I can't see any difference between the 041 and the 186 other than the casting symbol. Have been told the 041 actually flows slightly better. Also, seems like every Z11 and Z10 car with the original 295 horse 350 has 041 heads.

Thanks in advance for any input.

Lynn

Astock · #8 08-26-2005, 02:17 AM

The easy way of determining original 202 heads is looking at the two outer walls that separate the four chambers/pockets of valves.The two outer walls (that separate the big valves from each chamber)are thinner than the middle one. 194's are all the same thickness.

**Lynn** · #9 08-26-2005, 02:31 AM

I agree Jim. I don't think there is any dispute that some of the 041 heads were machined from the factory for 2.02 intakes. Also don't believe there is any question that some Corvettes came with 041 heads, some with both 2.02 and some with 1.94 intake valves.

However, I am wondering if anyone is aware of an original 69 Z/28 that came with 041 heads. I should ask Jerry M, as he has likely looked at as many original cars as anyone in the country.

Lynn

**Salvatore** · #10 08-26-2005, 03:44 AM

041's didn't come on 69Z's. 186 casting did. 041 were small valves and 186's also had a 1.94 intake valve. 350/300hp cars were 1.94's. some 186 casting suppositly showed up on SS cars, but I never saw them.