350 heads with captains bars, Anything special? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

masterbeavis · 07-14-2007, 12:02 PM

A friend of mine is giving me an old 350 he has laying around. He thinks the heads are something special, because they have captains bars on the lower inside area twards the head and intake sealing surfaces. Any possibility of winding up with something special, or just another plain jane 350? I was not able to get casting numbers, too much junk on top of the motor.

69ChevyLB · 07-14-2007, 02:01 PM

Try this link for more info. http://www.geocities.com/rscott77070/headguide.html

masterbeavis · 07-14-2007, 02:59 PM

That looks like some useful information, however when there is a bunch of question marks around half of the information he listed, it makes me wonder how accurate any of it is.

eedgell · 07-14-2007, 03:06 PM

Get the casting numbers from both the engine block, and the heads. Thats the only way to be sure what it is.

masterbeavis · 07-14-2007, 04:07 PM

the suffix on the block was WM,(V0507WM) which comes out to 69 307 or 350 out of a c20-c30. The block is a 3970010, with the large harmonic balancer. I could not read the date code

CrashEd · 07-14-2007, 04:53 PM

It would have to be a 350 with the casting # and the wm on the pad the 3970010 is a 302,327 or 350 block.
If the 2 bars are just square on top there nothing special if there rounded on top then thy might be the 186 heads and there great heads. Really need the casting# to be sure though.
Ed

poorboy · 07-14-2007, 05:21 PM

The guys stuff is accurate. The question marks maybe from his computer programming. This same stuff has been listed in several magazines. You can also try this website. No pics but it has all the casting #'s. http://www.mortec.com/castnum.htm

jamesroy9289 · 07-14-2007, 06:11 PM

My dad works at an auto parts store, and he gave me sheets telling what codes on blocks and heads belong to what years, and what size motors, it's been right all the time, if that casting is right you should have a 67-70 2-bolt main that uses gasket type sparkplugs if the heads are origional.

jamesroy9289 · 07-14-2007, 06:14 PM

sorry, I guess that doesn't really help you I guess, since it doesn't tell you if they're good heads or not, just if their origional heads....

masterbeavis · 07-15-2007, 04:26 PM

Quote:

Originally Posted by CrashEd

It would have to be a 350 with the casting # and the wm on the pad the 3970010 is a 302,327 or 350 block.
If the 2 bars are just square on top there nothing special if there rounded on top then thy might be the 186 heads and there great heads. Really need the casting# to be sure though.
Ed

IRC, they were square. This motor seems like it isn't even worth the gas to drive the 40 miles to get it.

07-14-2007, 12:02 PM	#1
masterbeavis Having issues Join Date: Jul 2005 Location: Eldorado Ca, an hour east of sacramento Posts: 696	350 heads with captains bars, Anything special? A friend of mine is giving me an old 350 he has laying around. He thinks the heads are something special, because they have captains bars on the lower inside area twards the head and intake sealing surfaces. Any possibility of winding up with something special, or just another plain jane 350? I was not able to get casting numbers, too much junk on top of the motor.

07-14-2007, 02:01 PM	#2
69ChevyLB Active Member Join Date: Aug 2004 Location: Canton, OH Posts: 249	Re: 350 heads with captains bars, Anything special? Try this link for more info. http://www.geocities.com/rscott77070/headguide.html __________________ 69 C10 LWB Project 47 Cushman Scooter Project It is better to have loved and lost than to live with a psycho all your life.

07-14-2007, 02:59 PM	#3
masterbeavis Having issues Join Date: Jul 2005 Location: Eldorado Ca, an hour east of sacramento Posts: 696	Re: 350 heads with captains bars, Anything special? That looks like some useful information, however when there is a bunch of question marks around half of the information he listed, it makes me wonder how accurate any of it is.

07-14-2007, 03:06 PM	#4
eedgell It's the air up here Join Date: Mar 2007 Location: Western Colorado Posts: 710	Re: 350 heads with captains bars, Anything special? Get the casting numbers from both the engine block, and the heads. Thats the only way to be sure what it is. __________________ 1971 cheyenne k10 4 speed np 205 454 BB factory a/c Never drink down stream of the herd! Eric

07-14-2007, 04:07 PM	#5
masterbeavis Having issues Join Date: Jul 2005 Location: Eldorado Ca, an hour east of sacramento Posts: 696	Re: 350 heads with captains bars, Anything special? the suffix on the block was WM,(V0507WM) which comes out to 69 307 or 350 out of a c20-c30. The block is a 3970010, with the large harmonic balancer. I could not read the date code

07-14-2007, 04:53 PM	#6
CrashEd 72 chevy Join Date: Jan 2007 Location: Central Il Posts: 725	Re: 350 heads with captains bars, Anything special? It would have to be a 350 with the casting # and the wm on the pad the 3970010 is a 302,327 or 350 block. If the 2 bars are just square on top there nothing special if there rounded on top then thy might be the 186 heads and there great heads. Really need the casting# to be sure though. Ed Last edited by CrashEd; 07-14-2007 at 05:04 PM.

07-14-2007, 05:21 PM	#7
poorboy Senior Member Join Date: Jun 2006 Location: Oregon City, Or Posts: 758	Re: 350 heads with captains bars, Anything special? The guys stuff is accurate. The question marks maybe from his computer programming. This same stuff has been listed in several magazines. You can also try this website. No pics but it has all the casting #'s. http://www.mortec.com/castnum.htm

07-14-2007, 06:11 PM	#8
jamesroy9289 Registered User Join Date: Apr 2005 Location: Brookings_South Dakota Posts: 43	Re: 350 heads with captains bars, Anything special? My dad works at an auto parts store, and he gave me sheets telling what codes on blocks and heads belong to what years, and what size motors, it's been right all the time, if that casting is right you should have a 67-70 2-bolt main that uses gasket type sparkplugs if the heads are origional. __________________ 01 Pontiac Bonneville SLE 62 Studebaker GT Hawk 72 GMC C20-327/th350 81 Chevy c10 84 Monte Carlo SS 70 Ford 3/4ton 4X4 Highboy 390/bedhoist 68 Mercury Cougar GT

07-14-2007, 06:14 PM	#9
jamesroy9289 Registered User Join Date: Apr 2005 Location: Brookings_South Dakota Posts: 43	Re: 350 heads with captains bars, Anything special? sorry, I guess that doesn't really help you I guess, since it doesn't tell you if they're good heads or not, just if their origional heads.... __________________ 01 Pontiac Bonneville SLE 62 Studebaker GT Hawk 72 GMC C20-327/th350 81 Chevy c10 84 Monte Carlo SS 70 Ford 3/4ton 4X4 Highboy 390/bedhoist 68 Mercury Cougar GT

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