Hey all, quick question (while I'm sitting in these)... - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Luvlegs · 01-07-2021, 04:26 PM

Anyone ID these - before I put any effort into saving them (theres 2). Currently, the drive is out the "front" of them....

b454rat · 01-07-2021, 05:04 PM

Small block chevy, could be 305 or 350. Not too many other options I don't think....

geezer#99 · 01-07-2021, 05:27 PM

More likely a 283 or 327.
Casting number will provide more info.

**AussieinNC** · 01-07-2021, 05:42 PM

327 OMC (SBC) from look of intake with "front of engine" fill tube and no PVC on the rocker covers....

Check casting number on flywheel end of engine and post the number...it will tell us immediately what it is...

BTW...most OMC 327 are 4 bolt mains,,,,,

Check them really well for valley cracks...these get left out in inter weather with zero freeze protection...

Luvlegs · 01-07-2021, 06:18 PM

For the life of me I can seem to find any numbers on the back side of the blocks. Or the heads for that matter. I do know early/mid 70s. I'll dig some more tomorrow. Thanks all!

**bhap** · 01-07-2021, 10:28 PM

If they are in the same boat, one is probably reverse rotation. My early 60's Chris Craft 283 is very similar.

Luvlegs · 01-07-2021, 11:08 PM

And I think they are, the one distributor has stickers on it " re-numbering" the terminals.

Dead Parrot · 01-08-2021, 01:52 PM

Unless you know the history, almost anything could be hiding in there. How many 350 blocks will come back as 160HP stock based on numbers that after opening up are really 300+ HP 383s? And you can't really tell by the 'dress' as it will fit on blocks from 283 to 400.

Boat owners are just as likely to want a faster hole shot as a car owners want a quicker 0-60.

If one is reverse rotation, it might be worth saving just for that reason.

Ziegelsteinfaust · 01-08-2021, 02:18 PM

If they are truly boat motors.

They usually have better blocks in terms of casting materials.

Plus either high nodular cranks or very often forged.

I like buying old boat motors for performance applications as they used to effectively equal race blocks, but on a budget I could afford. Similar to how brand F guys use FT parts to build a wicked FE.

gmc684x4 · 01-09-2021, 04:47 AM

Here is a video to show you where to look for casting numbers

https://m.youtube.com/watch?v=H0mG4uU9xFk

Luvlegs · 01-11-2021, 01:42 PM

Got one...3914678 68-79, 302/327/350 - car/truck 2 bolt. Sooooo.... Let em go?

Tom · 01-11-2021, 04:12 PM

Quote:

Originally Posted by Luvlegs

Got one...3914678 68-79, 302/327/350 - car/truck 2 bolt. Sooooo.... Let em go?

As apposed to what exactly? Sounds like a normal 4" bore block, the kind everyone wants when doing Gen I engines.

Luvlegs · 01-11-2021, 04:41 PM

They're in a boat that is being (I'm) demolishing. Washed up sideways on shore and will most likely have to reach out to them with a backhoe. It's a large boat, holes in hull. It'll be a bit of an effort (and it's cold - ha). I guess I'm wondering if worth the effort or wasting my time.

SunSoaked · 01-16-2021, 11:56 PM

Quote:

Originally Posted by Luvlegs

Anyone ID these - before I put any effort into saving them (theres 2). Currently, the drive is out the "front" of them....

What exactly are you "sitting in?"

**mattfranklin** · 01-18-2021, 10:12 PM

If those things have a jet-drive or vee-drive, they could also be worth some money -- as long as you're salvaging things. Check eBay for typical prices to see if your time is worth it.

Myself · 01-27-2021, 07:21 PM

I would save 'em first, then figure out what they're worth. Good cranks and rods for sure....those manifolds are probably worth $100 a piece...etc.

01-07-2021, 04:26 PM	#1
Luvlegs Registered User Join Date: Sep 2005 Location: Smith Mountain Lake Virginia Posts: 1,537	Hey all, quick question (while I'm sitting in these)... Anyone ID these - before I put any effort into saving them (theres 2). Currently, the drive is out the "front" of them.... Attached Images __________________ "A cat will almost always blink when hit between the eyes with a ball peen hammer" (you don't always have to state the obvious) Wear your PPE! You can eat with false teeth but you can't see with a false eye. 1959 Studebaker Silverhawk 350/400 1972 C10 L6 3OTT 2005 F350 - Built - whew!

01-07-2021, 05:04 PM	#2
b454rat Senior Member Join Date: May 2004 Location: Binghamton, NY Posts: 3,453	Re: Hey all, quick question (while I'm sitting in these)... Small block chevy, could be 305 or 350. Not too many other options I don't think....

01-07-2021, 05:27 PM	#3
geezer#99 Registered User Join Date: Aug 2009 Location: Bowser Posts: 13,508	Re: Hey all, quick question (while I'm sitting in these)... More likely a 283 or 327. Casting number will provide more info.

01-07-2021, 05:42 PM	#4
AussieinNC Moderator Join Date: Jun 2017 Location: Cherryville, NC Posts: 2,153	Re: Hey all, quick question (while I'm sitting in these)... 327 OMC (SBC) from look of intake with "front of engine" fill tube and no PVC on the rocker covers.... Check casting number on flywheel end of engine and post the number...it will tell us immediately what it is... BTW...most OMC 327 are 4 bolt mains,,,,, Check them really well for valley cracks...these get left out in inter weather with zero freeze protection... __________________ Family and country before all others... 2006 Chevy Silverado (Daily Driver) 2012 Chevy Equinox

01-07-2021, 06:18 PM	#5
Luvlegs Registered User Join Date: Sep 2005 Location: Smith Mountain Lake Virginia Posts: 1,537	Re: Hey all, quick question (while I'm sitting in these)... For the life of me I can seem to find any numbers on the back side of the blocks. Or the heads for that matter. I do know early/mid 70s. I'll dig some more tomorrow. Thanks all! __________________ "A cat will almost always blink when hit between the eyes with a ball peen hammer" (you don't always have to state the obvious) Wear your PPE! You can eat with false teeth but you can't see with a false eye. 1959 Studebaker Silverhawk 350/400 1972 C10 L6 3OTT 2005 F350 - Built - whew!

01-07-2021, 10:28 PM	#6
bhap Senior Member Join Date: Mar 2006 Location: Pittsburgh, PA Posts: 240	Re: Hey all, quick question (while I'm sitting in these)... If they are in the same boat, one is probably reverse rotation. My early 60's Chris Craft 283 is very similar.

01-07-2021, 11:08 PM	#7
Luvlegs Registered User Join Date: Sep 2005 Location: Smith Mountain Lake Virginia Posts: 1,537	Re: Hey all, quick question (while I'm sitting in these)... And I think they are, the one distributor has stickers on it " re-numbering" the terminals. __________________ "A cat will almost always blink when hit between the eyes with a ball peen hammer" (you don't always have to state the obvious) Wear your PPE! You can eat with false teeth but you can't see with a false eye. 1959 Studebaker Silverhawk 350/400 1972 C10 L6 3OTT 2005 F350 - Built - whew!

01-08-2021, 01:52 PM	#8
Dead Parrot Registered User Join Date: Aug 2012 Location: Oklahoma City, OK Posts: 2,472	Re: Hey all, quick question (while I'm sitting in these)... Unless you know the history, almost anything could be hiding in there. How many 350 blocks will come back as 160HP stock based on numbers that after opening up are really 300+ HP 383s? And you can't really tell by the 'dress' as it will fit on blocks from 283 to 400. Boat owners are just as likely to want a faster hole shot as a car owners want a quicker 0-60. If one is reverse rotation, it might be worth saving just for that reason.

01-08-2021, 02:18 PM	#9
Ziegelsteinfaust Registered User Join Date: Dec 2012 Location: Temple City Posts: 3,558	Re: Hey all, quick question (while I'm sitting in these)... If they are truly boat motors. They usually have better blocks in terms of casting materials. Plus either high nodular cranks or very often forged. I like buying old boat motors for performance applications as they used to effectively equal race blocks, but on a budget I could afford. Similar to how brand F guys use FT parts to build a wicked FE.

01-09-2021, 04:47 AM	#10
gmc684x4 Registered User Join Date: Jul 2012 Location: Whitehorse yukon Posts: 1,218	Re: Hey all, quick question (while I'm sitting in these)... Here is a video to show you where to look for casting numbers https://m.youtube.com/watch?v=H0mG4uU9xFk

01-11-2021, 01:42 PM	#11
Luvlegs Registered User Join Date: Sep 2005 Location: Smith Mountain Lake Virginia Posts: 1,537	Re: Hey all, quick question (while I'm sitting in these)... Got one...3914678 68-79, 302/327/350 - car/truck 2 bolt. Sooooo.... Let em go? __________________ "A cat will almost always blink when hit between the eyes with a ball peen hammer" (you don't always have to state the obvious) Wear your PPE! You can eat with false teeth but you can't see with a false eye. 1959 Studebaker Silverhawk 350/400 1972 C10 L6 3OTT 2005 F350 - Built - whew!

01-11-2021, 04:41 PM	#13
Luvlegs Registered User Join Date: Sep 2005 Location: Smith Mountain Lake Virginia Posts: 1,537	Re: Hey all, quick question (while I'm sitting in these)... They're in a boat that is being (I'm) demolishing. Washed up sideways on shore and will most likely have to reach out to them with a backhoe. It's a large boat, holes in hull. It'll be a bit of an effort (and it's cold - ha). I guess I'm wondering if worth the effort or wasting my time. __________________ "A cat will almost always blink when hit between the eyes with a ball peen hammer" (you don't always have to state the obvious) Wear your PPE! You can eat with false teeth but you can't see with a false eye. 1959 Studebaker Silverhawk 350/400 1972 C10 L6 3OTT 2005 F350 - Built - whew!

01-18-2021, 10:12 PM	#15
mattfranklin Senior Member Join Date: Dec 2011 Location: Moraga, CA Posts: 799	Re: Hey all, quick question (while I'm sitting in these)... If those things have a jet-drive or vee-drive, they could also be worth some money -- as long as you're salvaging things. Check eBay for typical prices to see if your time is worth it. __________________ (Very) Slow-Going Build Thread: Stock 1970 Short Step with Stock 1970 LT-1 http://67-72chevytrucks.com/vboard/s...d.php?t=567340

01-27-2021, 07:21 PM	#16
Myself Registered User Join Date: Oct 2005 Location: Northern Arkansas Posts: 1,127	Re: Hey all, quick question (while I'm sitting in these)... I would save 'em first, then figure out what they're worth. Good cranks and rods for sure....those manifolds are probably worth $100 a piece...etc.

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