Cylinder head help - The 1947 - Present Chevrolet & GMC Truck Message Board Network

yad · 03-01-2008, 09:18 AM

I recently bought a '72 truck with what I believe is a '68 307. This was a project truck for a guy, but he gave up early in the game (probably the first inning).

He said the heads are no good on the motor, and gave two heads with the truck. The heads have this number stamped on them: 14102183. The valve covers are center bolt.

I think the heads are off something newer than '72 for sure, but will they work on the '68 block? The block casting number is V0111CMA.

If these heads won't work, which ones will? I'm on a tight-TIGHT budget.

Any help would be GREATLY appreciated.

samwise68 · 03-01-2008, 09:42 AM

well, i'm no expert. but, this is the most info i can find.

14102193...87-up...305/350......1.94"/1.5" valves

(i know your number is -83, but it's possible you mistyped, or the number on the block looked odd. whichever, thats the closest i can find for your head number).

and as far as the casting number for the block..i can find NOTHING that has letters in it. where did you get the number off of? if you don't mind me asking, because the place you're going to want to is on the back of the block, on the driver side, behind the head and by the bellhousing.

however, with the information you gave me, V0111CMA, i can tell you the block was amde in Flint, Michigan, on January 11. what year, i'm not sure. CMR, not CMA, is the suffix.

and, thats about it.

i don't know about the heads; i'm sure someone else will chime in.

but, i hope i atleast shed some light onto your situation.

-Sam.

bad421 · 03-01-2008, 10:08 AM

All gen 1 sbc heads will interchange, to find out what motor is ur gonna need the casting # not the id, look on the left rear of motor on the bellhousing flange.

Alaskan · 03-01-2008, 10:20 AM

www.mortec.com has great info on casting numbers.

**WorkinLonghorn** · 03-01-2008, 10:37 AM

That number (V0111CMA) looks like it's off the tab in front of the right head. It's 1974 350 with auto trans. here's the link;http://www.nastyz28.com/gm-chevy-cod...s-suffix-2.php

chevy one · 03-01-2008, 10:46 AM

If the heads are true 87 and up, they will bolt to the older blocks (Gen 1) but the 4 center bolts for the intake manifold are machine a straighter angle. You can use the newer Vortex manifold (Gen2) or the intake holes can be elongated on the older manifold (Gen 1) for fitment. I recommend using the newer manifold.

yad · 03-01-2008, 09:55 PM

Thanks for the help everyone!

The V011CMA number is located on the block directly in front of the passenger side head. The list shows it could have been a 307 from 68, OR a 350 from a 74. SO, I'm still not sure what it is. I guess I'll have to do some degreasing and find another # on the block near the bellhousing.

Not sure what manifold is on the truck, however it is set up with a 4bbl. (A shot holley). Hopefully the heads I have will work on the motor and manifold. I'm not looking to make a show truck, but a good running daily driver.

Thanks again!

yad · 03-06-2008, 01:53 AM

After climbing in, over, through, and under the truck, I found the following numbers. The casting number at the back of the block is 14093638. According to mortec.com, that's an 87-95 350. But the number on the front of the motor (in front of the passenger cylinder head) is V0111CMA. According to nastyz28 website, the block is a '74 350. SO, which one do I have?

Then on to my next question. What Edelbrock intake will I need to use the cylinder heads (14102193) with this motor? I don't want to have to ream out the intake bolt holes to use the heads. I was looking at the performer intakes in the low RPM range.

At least I know it's not a 307 anymore! It actually has 5.7LG SGI on the back of the block near the bellhouse. Any information would be appreciated!

yad · 03-08-2008, 11:49 AM

Quote:

After climbing in, over, through, and under the truck, I found the following numbers. The casting number at the back of the block is 14093638. According to mortec.com, that's an 87-95 350. But the number on the front of the motor (in front of the passenger cylinder head) is V0111CMA. According to nastyz28 website, the block is a '74 350. SO, which one do I have?

Then on to my next question. What Edelbrock intake will I need to use the cylinder heads (14102193) with this motor? I don't want to have to ream out the intake bolt holes to use the heads. I was looking at the performer intakes in the low RPM range.

At least I know it's not a 307 anymore! It actually has 5.7LG SGI on the back of the block near the bellhouse. Any information would be appreciated!

Can anyone help on this??

68C15 · 03-08-2008, 03:56 PM

casting #s are written in stone. stampings can be changed. I would trust the 14093638. also having 5.7 cast into it instantly tells me its a late model with a one piece rear main, balanced flywheel.

bad421 · 03-08-2008, 09:54 PM

if the heads are 87-95 you will need a intake for a 87-95. a vortec intake will not work because a vortec only has 8 bolts that hold it down, and no bolts in the center of mounting flange and all bolts go straight down, 87-95 still have 12 bolts with center 2 on each side that go straight down the other 8 go in at a angle like 86 and older

**clay68c10** · 03-08-2008, 10:13 PM

That's a good block to start with, one piece rear mains usually don't leak. There's a slim chance it has a roller cam, which is a nice bonus.

**truckdude239** · 03-08-2008, 10:16 PM

do your self a favor before you put those heads on take them to a machine shop and have them checked

yad · 04-04-2008, 07:07 AM

Well, I'm tearing down the motor to get ready for a rebuild. To my surprise (But not the surprise of Clay68) It has a roller cam! Not really sure what it means as far as the motor, but this is the first one I've seen. I've dealt with solid lifters before, but the roller lifters and lifter retaining plate (is that what it's called?) are kind of cool. Now I need to drain the rest of the coolant somehow without spilling it all over the garage floor!

67_C-30 · 04-04-2008, 07:42 AM

That most likely means it is a car engine if it has a roller cam. Those heads you have a fine for an everyday driver, but they are about the worst SBC head there is in terms of being a performance head. They are swirl port heads which means the intake port has a divertor that restricts airflow and creates turbulance. This was done to give the TBI engines more torque at the cost of high RPM capability. If you are buiding it for power, I'd choose another head.

**clay68c10** · 04-05-2008, 06:00 AM

You'll make a mess, but that's the way it goes. I really didn't think you'd find a roller cam, but you lucked out. Some folks call the lifter retainer a spider, but whatever works for you.

yad · 05-28-2008, 08:04 PM

Ok, another engine question. I know I'll find the answer from someone!

The 350 block I have (14093638) is listed as a 1987-1995 engine. If I have an older style intake (Edelbrock 2701), can I use a set of older style heads? A gentlement in my neighborhood GAVE me a set of stock 350 heads (462624). Will the older style heads work on the newer style block with the intake listed? The heads have been magnafluxed already, and are good. Nothing fancy.

Like Letterman's "Will it Float?" segment, this board needs a "Will it Work?" permanent thread.

Thanks!

03-01-2008, 09:18 AM	#1
yad Driving the Thin Blue Line Join Date: Feb 2008 Location: St. Louis MO Posts: 43	Cylinder head help I recently bought a '72 truck with what I believe is a '68 307. This was a project truck for a guy, but he gave up early in the game (probably the first inning). He said the heads are no good on the motor, and gave two heads with the truck. The heads have this number stamped on them: 14102183. The valve covers are center bolt. I think the heads are off something newer than '72 for sure, but will they work on the '68 block? The block casting number is V0111CMA. If these heads won't work, which ones will? I'm on a tight-TIGHT budget. Any help would be GREATLY appreciated.

03-01-2008, 10:08 AM	#3
bad421 Registered User Join Date: Jan 2007 Location: Virginia Posts: 411	Re: Cylinder head help All gen 1 sbc heads will interchange, to find out what motor is ur gonna need the casting # not the id, look on the left rear of motor on the bellhousing flange.

03-01-2008, 10:20 AM	#4
Alaskan Truck'n the alcan Join Date: Jan 2001 Location: Houston, AK Posts: 149	Re: Cylinder head help www.mortec.com has great info on casting numbers. __________________ 68 GMC 4x4 71 C20 Custom Deluxe 83 1/2 ton conversion van

03-01-2008, 10:37 AM	#5
WorkinLonghorn Senior Member Join Date: Dec 2006 Location: Studio City, Calif. Posts: 2,883	Re: Cylinder head help That number (V0111CMA) looks like it's off the tab in front of the right head. It's 1974 350 with auto trans. here's the link;http://www.nastyz28.com/gm-chevy-cod...s-suffix-2.php __________________ '69 GMC C2500 Custom Camper, 8 1/2' bed, New GM 350, NP 435 Close Ratio 4spd. Trans., 3.73 Dana-60 open.Camper and Trailer wiring, PS, PB, AC, tach , three gas tanks, stereo speakers, 2nd owner, Work-Truck supreme.

03-01-2008, 10:46 AM	#6
chevy one Chevy One Join Date: Nov 2006 Location: The BeeHive State Posts: 132	Re: Cylinder head help If the heads are true 87 and up, they will bolt to the older blocks (Gen 1) but the 4 center bolts for the intake manifold are machine a straighter angle. You can use the newer Vortex manifold (Gen2) or the intake holes can be elongated on the older manifold (Gen 1) for fitment. I recommend using the newer manifold. __________________ Chevy One 67 1/2 Two-on-the-Floor 67 Nova 2Dr Sedan 03 Monte Carlo I'M NOT OLD, JUST A CLASSIC!!!

03-01-2008, 09:55 PM	#7
yad Driving the Thin Blue Line Join Date: Feb 2008 Location: St. Louis MO Posts: 43	Re: Cylinder head help Thanks for the help everyone! The V011CMA number is located on the block directly in front of the passenger side head. The list shows it could have been a 307 from 68, OR a 350 from a 74. SO, I'm still not sure what it is. I guess I'll have to do some degreasing and find another # on the block near the bellhousing. Not sure what manifold is on the truck, however it is set up with a 4bbl. (A shot holley). Hopefully the heads I have will work on the motor and manifold. I'm not looking to make a show truck, but a good running daily driver. Thanks again!

03-06-2008, 01:53 AM	#8
yad Driving the Thin Blue Line Join Date: Feb 2008 Location: St. Louis MO Posts: 43	Re: Cylinder head help After climbing in, over, through, and under the truck, I found the following numbers. The casting number at the back of the block is 14093638. According to mortec.com, that's an 87-95 350. But the number on the front of the motor (in front of the passenger cylinder head) is V0111CMA. According to nastyz28 website, the block is a '74 350. SO, which one do I have? Then on to my next question. What Edelbrock intake will I need to use the cylinder heads (14102193) with this motor? I don't want to have to ream out the intake bolt holes to use the heads. I was looking at the performer intakes in the low RPM range. At least I know it's not a 307 anymore! It actually has 5.7LG SGI on the back of the block near the bellhouse. Any information would be appreciated!

03-08-2008, 03:56 PM	#10
68C15 blood type; Retumbo Join Date: Jan 2004 Location: next to my reloading bench Posts: 10,269	Re: Cylinder head help casting #s are written in stone. stampings can be changed. I would trust the 14093638. also having 5.7 cast into it instantly tells me its a late model with a one piece rear main, balanced flywheel.

03-08-2008, 09:54 PM	#11
bad421 Registered User Join Date: Jan 2007 Location: Virginia Posts: 411	Re: Cylinder head help if the heads are 87-95 you will need a intake for a 87-95. a vortec intake will not work because a vortec only has 8 bolts that hold it down, and no bolts in the center of mounting flange and all bolts go straight down, 87-95 still have 12 bolts with center 2 on each side that go straight down the other 8 go in at a angle like 86 and older __________________ ASE MASTER TECH 1968 K10 LT1 350,SM420,T-221 lwb fleetSold 2007 Ford Ranger DD 2000 Ford F250SD V10 4x4 1968 Pontiac Firebird 468/TH400 current project 1991 Dodge W350 SRW CUMMINS POWERED Whole lotta fuel and a whole lotta Smoke

03-08-2008, 10:13 PM	#12
clay68c10 Senior Member Join Date: Aug 2004 Location: Centennial, CO Posts: 2,990	Re: Cylinder head help That's a good block to start with, one piece rear mains usually don't leak. There's a slim chance it has a roller cam, which is a nice bonus. __________________ ClusterTruck: 68 C10 Bought in 89, wrecked in 03. Slow low $ rebuild started '17. 6.0 & TKO http://67-72chevytrucks.com/vboard/s...d.php?t=788602 93 K1500 Short Step, 350, NV4500, EBL flash ECU. Vortec heads & roller cam someday... 05 Jeep Wrangler Unlimited. 3” lift & 6-speed 02 E320 the insurance total “free car” 13 Tahoe LTZ

03-08-2008, 10:16 PM	#13
truckdude239 Senior Member Join Date: Sep 2005 Location: Lewisville, Nc Posts: 10,237	Re: Cylinder head help do your self a favor before you put those heads on take them to a machine shop and have them checked __________________ David fuller Ase Certified Mechanic Click here to help support our board!! 1971 Chevy c-10 under going a 4.8l LSx swap Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305 2007 Honda Accord my daily 145kmiles 2002 Honda Accord 4 door With 330k(sisters car) 2005 toyota Avalon 228k( brothers car) 2002 Sububran 5.3 245k 2000 Tahoe 5.3l 378 General manager for Marco's Carwash & lube

04-04-2008, 07:07 AM	#14
yad Driving the Thin Blue Line Join Date: Feb 2008 Location: St. Louis MO Posts: 43	Re: Cylinder head help Well, I'm tearing down the motor to get ready for a rebuild. To my surprise (But not the surprise of Clay68) It has a roller cam! Not really sure what it means as far as the motor, but this is the first one I've seen. I've dealt with solid lifters before, but the roller lifters and lifter retaining plate (is that what it's called?) are kind of cool. Now I need to drain the rest of the coolant somehow without spilling it all over the garage floor!

04-04-2008, 07:42 AM	#15
67_C-30 I have a radical idea! Join Date: Jan 2005 Location: Sweet Home Alabama! Posts: 6,513	Re: Cylinder head help That most likely means it is a car engine if it has a roller cam. Those heads you have a fine for an everyday driver, but they are about the worst SBC head there is in terms of being a performance head. They are swirl port heads which means the intake port has a divertor that restricts airflow and creates turbulance. This was done to give the TBI engines more torque at the cost of high RPM capability. If you are buiding it for power, I'd choose another head. __________________ '67 C-30 Dually Pickup 6.2 Turbo Diesel, NP435 ‘72 C-10 SWB , 350 4bbl, TH350 '69 C-10 SWB , 250 L6, 3 OTT '69 GMC C3500, dump truck, 351 V6, NP435 '84 M1009 CUCV Military Blazer 67 C-30 Turbodiesel build thread http://67-72chevytrucks.com/vboard/s...d.php?t=254096 My trucks http://s226.photobucket.com/albums/d...ediafilter=all Member of the 1-Ton Club!

04-05-2008, 06:00 AM	#16
clay68c10 Senior Member Join Date: Aug 2004 Location: Centennial, CO Posts: 2,990	Re: Cylinder head help You'll make a mess, but that's the way it goes. I really didn't think you'd find a roller cam, but you lucked out. Some folks call the lifter retainer a spider, but whatever works for you. __________________ ClusterTruck: 68 C10 Bought in 89, wrecked in 03. Slow low $ rebuild started '17. 6.0 & TKO http://67-72chevytrucks.com/vboard/s...d.php?t=788602 93 K1500 Short Step, 350, NV4500, EBL flash ECU. Vortec heads & roller cam someday... 05 Jeep Wrangler Unlimited. 3” lift & 6-speed 02 E320 the insurance total “free car” 13 Tahoe LTZ

05-28-2008, 08:04 PM	#17
yad Driving the Thin Blue Line Join Date: Feb 2008 Location: St. Louis MO Posts: 43	Re: Cylinder head help Ok, another engine question. I know I'll find the answer from someone! The 350 block I have (14093638) is listed as a 1987-1995 engine. If I have an older style intake (Edelbrock 2701), can I use a set of older style heads? A gentlement in my neighborhood GAVE me a set of stock 350 heads (462624). Will the older style heads work on the newer style block with the intake listed? The heads have been magnafluxed already, and are good. Nothing fancy. Like Letterman's "Will it Float?" segment, this board needs a "Will it Work?" permanent thread. Thanks!



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.