Stock 350 casting question - 010 vs 014 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**JQ-72** · 10-22-2017, 01:07 AM

I've got 2 stock 350 engines that were cast 5 days apart at the same engine plant, but they have different casting numbers. Wondering what the difference was. Here the info:

1) - 1972 GMC 1/2 ton. Suffix V0425TDJ. Casting 3970014
2) - 1972 Chevy 1/2 ton. Suffix V0420TDJ. Casting 3970010

67_C-30 · 10-23-2017, 12:00 AM

In my experience, all 014 blocks I've had were 2 bolts and had staggered 2 bolt starter pattern, and I have 010's that were 2 and 4 bolt, and had straight across or staggered starter patterns.

I had a 014 block that I built to replace an engine in my Camaro years ago, and my straight pattern mini starter wouldn't work with it.

**Ironangel** · 10-23-2017, 05:07 AM

I'll let you look up the casting numbers but they are both essentially the same block with the 010 casting running from 69 - 79 and the 014 ran only from 70 - 73
V0425TDJ V= Flint 04= April 25= 25th day TDJ= TDJ 1972 350 conv.cab,a/t 175 4 C-10 & 20
TDJ 1980 350 van & bus,a/t L LS9 155 4 C-10 to 2500
http://www.nastyz28.com/sbchevy/sblock.html

http://www.nastyz28.com/gm-chevy-cod...s-suffix-7.php

**JQ-72** · 10-23-2017, 05:09 AM

I've already got the 014 engine torn down and it's a 4 bolt main with staggered starter holes.

**Ironangel** · 10-23-2017, 06:29 AM

Quote:

Originally Posted by JQ-72

I've already got the 014 engine torn down and it's a 4 bolt main with staggered starter holes.

They came with 2-bolt mains as well. It depended on the application, 3/4 ton van and truck almost always got the 4-bolt while the 1/2 ton applications usually did not. Some of those 041 blocks were used in the Z28's and Corvettes as well...The same can be said for the 010 as well, they came in both 2 and 4 bolt versions picking up where the 041's stopped in 73.

**special-K** · 10-23-2017, 08:39 AM

010 blocks were used in '68 for sure. It is the casting used for the '68 Camaro SS350 and the Z/28 302. Mine is a large journal 327 from a '68 C/20. I always believed the 010 to be the first large journal small block casting.

geezer#99 · 10-23-2017, 10:06 AM

Quote:

Originally Posted by JQ-72

I've got 2 stock 350 engines that were cast 5 days apart at the same engine plant, but they have different casting numbers. Wondering what the difference was. Here the info:

1) - 1972 GMC 1/2 ton. Suffix V0425TDJ. Casting 3970014
2) - 1972 Chevy 1/2 ton. Suffix V0420TDJ. Casting 3970010

The suffix code doesn't show the cast date of the blocks, it shows the date they where installed in the truck.
Either one or both could of sat waiting to be used for 6 months or more.

**JQ-72** · 10-23-2017, 01:59 PM

Oddly enough, blocks were cast 5 days apart - D 14 72 and D 19 72. Just wondering if one being a GMC had anything to do with it.
JQ

**Jcfcamaro** · 10-23-2017, 02:21 PM

A machine shop guy told me the 010 blocks were really good because they had a higher nickel level in the casting which made them stronger.

10-22-2017, 01:07 AM	#1
JQ-72 Senior Member Join Date: Feb 2001 Location: Killen, Alabama USA Posts: 3,625	Stock 350 casting question - 010 vs 014 I've got 2 stock 350 engines that were cast 5 days apart at the same engine plant, but they have different casting numbers. Wondering what the difference was. Here the info: 1) - 1972 GMC 1/2 ton. Suffix V0425TDJ. Casting 3970014 2) - 1972 Chevy 1/2 ton. Suffix V0420TDJ. Casting 3970010 __________________ 72 Cheyenne Super swb. Factory 402/400,tach,posi,AM/FM, A/C. Adding cruise, 8-track 72 Cheyenne Super swb. 350/350 A/C, bucket seats 72 Cheyenne swb. Factory 402/400, tilt, posi, A/C 72 Cheyenne Super K-10. 350/4 spd., posi. 72 Suburban 350/350 tilt, tach, AM/FM, A/C, luggage rack 72 GMC Sierra lwb. 350/350, A/C. medium green/olive interior

10-23-2017, 12:00 AM	#2
67_C-30 I have a radical idea! Join Date: Jan 2005 Location: Sweet Home Alabama! Posts: 6,513	Re: Stock 350 casting question - 010 vs 014 In my experience, all 014 blocks I've had were 2 bolts and had staggered 2 bolt starter pattern, and I have 010's that were 2 and 4 bolt, and had straight across or staggered starter patterns. I had a 014 block that I built to replace an engine in my Camaro years ago, and my straight pattern mini starter wouldn't work with it. __________________ '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!

10-23-2017, 05:07 AM	#3
Ironangel Senior Member Join Date: Feb 2010 Location: Falls City, Nebraska "100 Miles From Nowhere" Posts: 2,219	Re: Stock 350 casting question - 010 vs 014 I'll let you look up the casting numbers but they are both essentially the same block with the 010 casting running from 69 - 79 and the 014 ran only from 70 - 73 V0425TDJ V= Flint 04= April 25= 25th day TDJ= TDJ 1972 350 conv.cab,a/t 175 4 C-10 & 20 TDJ 1980 350 van & bus,a/t L LS9 155 4 C-10 to 2500 http://www.nastyz28.com/sbchevy/sblock.html http://www.nastyz28.com/gm-chevy-cod...s-suffix-7.php __________________ Michael of the clan Hill, "Two Seventy Two's" 71 1-ton Dually 350 4-Speed 71 C/50 Grain Truck, 350 Split-Axle 4-Speed 02 3/4 ton Express 14 Indian Chief Vintage 1952 Ford 8N, "Only Ford Allowed On The Property" "Be American, Buy American" Last edited by Ironangel; 10-23-2017 at 05:20 AM.

10-23-2017, 05:09 AM	#4
JQ-72 Senior Member Join Date: Feb 2001 Location: Killen, Alabama USA Posts: 3,625	Re: Stock 350 casting question - 010 vs 014 I've already got the 014 engine torn down and it's a 4 bolt main with staggered starter holes. __________________ 72 Cheyenne Super swb. Factory 402/400,tach,posi,AM/FM, A/C. Adding cruise, 8-track 72 Cheyenne Super swb. 350/350 A/C, bucket seats 72 Cheyenne swb. Factory 402/400, tilt, posi, A/C 72 Cheyenne Super K-10. 350/4 spd., posi. 72 Suburban 350/350 tilt, tach, AM/FM, A/C, luggage rack 72 GMC Sierra lwb. 350/350, A/C. medium green/olive interior

10-23-2017, 08:39 AM	#6
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,851	Re: Stock 350 casting question - 010 vs 014 010 blocks were used in '68 for sure. It is the casting used for the '68 Camaro SS350 and the Z/28 302. Mine is a large journal 327 from a '68 C/20. I always believed the 010 to be the first large journal small block casting. __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~

10-23-2017, 01:59 PM	#8
JQ-72 Senior Member Join Date: Feb 2001 Location: Killen, Alabama USA Posts: 3,625	Re: Stock 350 casting question - 010 vs 014 Oddly enough, blocks were cast 5 days apart - D 14 72 and D 19 72. Just wondering if one being a GMC had anything to do with it. JQ __________________ 72 Cheyenne Super swb. Factory 402/400,tach,posi,AM/FM, A/C. Adding cruise, 8-track 72 Cheyenne Super swb. 350/350 A/C, bucket seats 72 Cheyenne swb. Factory 402/400, tilt, posi, A/C 72 Cheyenne Super K-10. 350/4 spd., posi. 72 Suburban 350/350 tilt, tach, AM/FM, A/C, luggage rack 72 GMC Sierra lwb. 350/350, A/C. medium green/olive interior

10-23-2017, 02:21 PM	#9
Jcfcamaro Senior Member Join Date: Jul 2015 Location: Fairfax, Missouri Posts: 1,049	Re: Stock 350 casting question - 010 vs 014 A machine shop guy told me the 010 blocks were really good because they had a higher nickel level in the casting which made them stronger.

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