Engine swap - Keep or sell the original 350? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Ekliptix · 09-01-2016, 12:09 PM

Hi,

I'm having a 402 put into my 72 Super to replace the stock (original) 350.
I have someone interested in the 350, but don't know if it's a good idea to keep it as part of the original truck. The numbers on the 350 show it as a 1972 block. I'd prefer to sell it to a) get a little cash and b) not have to store it.

Thoughts?

YBNORML · 09-01-2016, 12:22 PM

Honestly, I would keep it. It's getting harder and harder to find decent blocks. Especially ones that are runners. You never know what's gonna happen in the future. I have a couple stashed away. I just bought some rolling engine cradles from Princess Auto and shrink wrapped them. They fit nicely under a bench.
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firedemon · 09-01-2016, 05:04 PM

throw that junk away and don't polute Canada send that crap to new york its a junk yard here anyway ill get rid of it for you . no seriously never get rid of anything

leftybass209 · 09-01-2016, 05:12 PM

If you have the room to store it, and you plan on keeping the truck, you should do so. My truck is already far from stock, so even if I were to go back to an original style I'd use a newer, one piece main seal block.

Preserving originality only makes sense if there's enough left of the vehicle that's original already.

Again, my truck had an engine and trans swap, different seat, wheels, exhaust.... it will never be original again unfortunately!

57larry · 09-01-2016, 11:24 PM

what does he want to give for it?

Mike C · 09-02-2016, 08:53 AM

Unless you plan on needing a replacement motor for that truck or another project, I'd sell it.

IMO, "numbers matching" motor on a 67-72 doesn't matter. It's not like the trucks came with hot rod or extra desireable motors like the cars did. No 3735/396, aluminum heads, 302/290 hp, fuel injection, etc. Just a motor to get the truck down the road.

And with the LS series engine, it's hardly worth considering rebuilding a small block Chevy any more.

custom10nut · 09-02-2016, 09:19 AM

Keep it! You will regret it forever if you let it go

brad_man_72 · 09-02-2016, 11:20 AM

Somebody wants to pay you for a non roller SBC? Take their money!

**Boog** · 09-02-2016, 11:24 AM

With the many thousands of these trucks produced a small block 72 isn't all that much special. And with the modern LS engines all the rage it would be a no brainer if you were to remove the big block. Turn that 350 loose. They arent hard to come by.
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**leddzepp** · 09-02-2016, 11:28 AM

Numbers matching means nothing on these trucks. Sell it before he changes his mind.

Ekliptix · 09-02-2016, 03:29 PM

Wow, definitely not a consensus on here. The current suspension, trans, rear end and engine are not stock but they could theoretically all be returned to stock if needed (I have no intention to).

He has not specified an offer, but I'm thinking $500 US.

**mongocanfly** · 09-02-2016, 03:44 PM

I'd sell..I got 1000 for my original 350 with a set of headers and the trans out of mine and couldn't believe I got that for it..that was just gonna be my starting price.. he never even tried to talk me down just handed me a roll of 100s.I've got another 350 I'm fixing to sell as well..I went LS and will probably never go back..

**Boog** · 09-02-2016, 03:49 PM

Quote:

Originally Posted by Ekliptix

Wow, definitely not a consensus on here.

Well a forum with 149,399 members you'll get a few diff opinions.

Posted via Mobile Device
Posted via Mobile Device

cypressbog · 09-02-2016, 04:59 PM

I'd get rid of it. There's no such thing as 'numbers matching' on these trucks.

Kw69 · 09-02-2016, 05:25 PM

Not to sound stupid.. But I thought there was numbers matching... Oh well learn something everyday. I still have the engine that came with my truck. I will admit that the new LS engine are awesome !

leftybass209 · 09-02-2016, 05:42 PM

Quote:

Originally Posted by Kw69

Not to sound stupid.. But I thought there was numbers matching... Oh well learn something everyday. I still have the engine that came with my truck. I will admit that the new LS engine are awesome !

Common misconception with these trucks. The VIN was never stamped into the block, such as with GM cars. The closest you can get to numbers matching is a date code on a block that precedes the truck manufacture date. These trucks aren't revered and/or scrutinized for dated matching parts like other vehicles, so hearing numbers matching with these trucks is not only an incorrect statement in most cases, but has no real bearing on vehicle value either.

Coley · 09-02-2016, 05:59 PM

Hang onto that motor.
It ties the history of your truck together and if you ever sell it...that does count in its financial favour. Plus, the amount you get for it won't offset the loss of it in the long term relative to its value.
Now that said, trucks don't have matching numbers with their engines but they do have year/size/series/trans/engine connections that link them.
...unless you are doing a full dropped, non-original mod...then the history is out the window anyways.

I know if would matter to me if I was looking at buying a mostly original truck...I would be more interested knowing that motor was around.

My two bits.
Coley

Kw69 · 09-02-2016, 07:30 PM

Good to know! Yep I am trying to keep mine original as possible. OP I would be keeping that engine covered and put away for future use. I traced mine back to 69, so I'm definitely keeping mine despite having a drop in engine in the bay now. I will have the origainl rebuilt and put in back in and use the crate drop in for another project...

palallin · 09-02-2016, 08:26 PM

If you value originality at all, keep the 350, and, for goodness sake, don't put an LS into it.

cblock · 09-03-2016, 04:16 AM

I think it's all up to your possibilities, if you can do without the extra couple hundred bucks and have the room to store it, i'd say keep it. When you want to sell something you practically have to give it away and when you want to buy that same object it'll cost you an arm and a leg

**DeadheadNM** · 09-03-2016, 02:15 PM

I'd keep it if possible. True no "number matching" BUT there is a code stamped on the RH side of the block that denotes its application unless that has been machined off.

When I'm buying, if the original motor is there I consider that to be a big plus. For my K20 rebuild I drove to another state to collect a complete, correct code motor from a 55k mile survivor K20 Suburban the owner removed for an LS swap (I skipped decking the block to preserve the application code). The seller later regretted his decision to sell.

**Already Gone** · 09-04-2016, 01:30 AM

I have thought about this subject often so this thread is a definite interesting read.

09-01-2016, 12:09 PM	#1
Ekliptix Registered User Join Date: Aug 2013 Location: Calgary, Alberta Posts: 681	Engine swap - Keep or sell the original 350? Hi, I'm having a 402 put into my 72 Super to replace the stock (original) 350. I have someone interested in the 350, but don't know if it's a good idea to keep it as part of the original truck. The numbers on the 350 show it as a 1972 block. I'd prefer to sell it to a) get a little cash and b) not have to store it. Thoughts? __________________ 1972 Cheyenne Super SWB PS, PB, Tach, A/C, Tilt. Drivetrain: Built 402BB, TCI Streetfighter 700R4, 2,500 stall, Eaton posi, 3.73. Suspension/Chassis: ECE 4.5/6.5 drop, CPP nitrogen shocks, CPP front and rear sway bar, CPP cross members. Exhaust: 3" exhaust with x-pipe, Spintech 3000 mufflers, Hooker ceramic coated headers. Best 1/4 mile time: TBD.

09-01-2016, 12:22 PM	#2
YBNORML Registered User Join Date: May 2010 Location: Edmonton, Alberta Posts: 3,847	Re: Engine swap - Keep or sell the original 350? Honestly, I would keep it. It's getting harder and harder to find decent blocks. Especially ones that are runners. You never know what's gonna happen in the future. I have a couple stashed away. I just bought some rolling engine cradles from Princess Auto and shrink wrapped them. They fit nicely under a bench. Posted via Mobile Device __________________ --------------------------------------------------------------- Jason. 68’ GMC shortbox https://67-72chevytrucks.com/vboard/...d.php?t=794201 72' 2WD Blazer http://67-72chevytrucks.com/vboard/s...d.php?t=425385 67' LongBox C-10 http://67-72chevytrucks.com/vboard/s...d.php?t=691845 InstaGram ybnorml67

09-01-2016, 05:04 PM	#3
firedemon Registered User Join Date: Jun 2015 Location: @ Posts: 890	Re: Engine swap - Keep or sell the original 350? throw that junk away and don't polute Canada send that crap to new york its a junk yard here anyway ill get rid of it for you . no seriously never get rid of anything

09-01-2016, 05:12 PM	#4
leftybass209 Registered User Join Date: Feb 2011 Location: Modesto, CA Posts: 2,188	Re: Engine swap - Keep or sell the original 350? If you have the room to store it, and you plan on keeping the truck, you should do so. My truck is already far from stock, so even if I were to go back to an original style I'd use a newer, one piece main seal block. Preserving originality only makes sense if there's enough left of the vehicle that's original already. Again, my truck had an engine and trans swap, different seat, wheels, exhaust.... it will never be original again unfortunately!

09-01-2016, 11:24 PM	#5
57larry Registered User Join Date: Nov 2007 Location: Indianapolis Posts: 1,162	Re: Engine swap - Keep or sell the original 350? what does he want to give for it?

09-02-2016, 08:53 AM	#6
Mike C Registered User Join Date: Dec 1999 Location: Austin, TX, USA Posts: 7,717	Re: Engine swap - Keep or sell the original 350? Unless you plan on needing a replacement motor for that truck or another project, I'd sell it. IMO, "numbers matching" motor on a 67-72 doesn't matter. It's not like the trucks came with hot rod or extra desireable motors like the cars did. No 3735/396, aluminum heads, 302/290 hp, fuel injection, etc. Just a motor to get the truck down the road. And with the LS series engine, it's hardly worth considering rebuilding a small block Chevy any more. __________________ 44 Willys MB 52 M38A1 64 Corvette Coupe 68 Camaro 'vert LT1 & TH700 69 Z/28 355 12.6's @110 69 Chevy Short Step 4 1/2"/7" drop 72 Jimmy 4WD 4spd 4" & 35's 02 GMC 2500HD 4x4 Duramax

09-02-2016, 09:19 AM	#7
custom10nut Registered User Join Date: Apr 2015 Location: East Tn (In the heart of the Smoky Mtns) Posts: 1,867	Re: Engine swap - Keep or sell the original 350? Keep it! You will regret it forever if you let it go

09-02-2016, 11:20 AM	#8
brad_man_72 the boat guy Join Date: Jul 2007 Location: springfield mo Posts: 2,339	Re: Engine swap - Keep or sell the original 350? Somebody wants to pay you for a non roller SBC? Take their money! __________________ 67, swb, fleet, tach, throttle, 5.3, 4l60e, 3.73's, fuel cell, 5 lug, p.d.b., 4-6 drop. great little truck 66, stevens drag/ski 18' silouette, 350, 2.02 doublehump heads. comp extreme marine 278 cam, vette 7 fin valve covers, old polished edelbrock intake, velvetdrive, casale v-drive, adj cavitation plate. 28, model a rpu project,

09-02-2016, 11:24 AM	#9
Boog laying low Join Date: Mar 2001 Location: Searcy, Ark. USA Posts: 13,187	Re: Engine swap - Keep or sell the original 350? With the many thousands of these trucks produced a small block 72 isn't all that much special. And with the modern LS engines all the rage it would be a no brainer if you were to remove the big block. Turn that 350 loose. They arent hard to come by. Posted via Mobile Device __________________ Boog 69 Chevy stepside, 358/T350, 4.11 posi, 4.5/4 drop, rallys, poboy driver primer is finer 91 Chevy sportside, Tahoe, Yukon & GMC Crewcab All GM..'nuff said. I stand for the flag and kneel at the cross

09-02-2016, 11:28 AM	#10
leddzepp Moderator Join Date: May 2007 Location: Southern Cal Posts: 20,001	Re: Engine swap - Keep or sell the original 350? Numbers matching means nothing on these trucks. Sell it before he changes his mind. __________________ 1972 C/10 Cheyenne Super SWB. Restored, loaded, slammed. 1968 C/10 50th Anniversary LWB. Unrestored, stock, daily driver/work truck. RIP ElJay RIP 67ChevyRedneck RIP Grumpy Old Man

09-02-2016, 03:29 PM	#11
Ekliptix Registered User Join Date: Aug 2013 Location: Calgary, Alberta Posts: 681	Re: Engine swap - Keep or sell the original 350? Wow, definitely not a consensus on here. The current suspension, trans, rear end and engine are not stock but they could theoretically all be returned to stock if needed (I have no intention to). He has not specified an offer, but I'm thinking $500 US. __________________ 1972 Cheyenne Super SWB PS, PB, Tach, A/C, Tilt. Drivetrain: Built 402BB, TCI Streetfighter 700R4, 2,500 stall, Eaton posi, 3.73. Suspension/Chassis: ECE 4.5/6.5 drop, CPP nitrogen shocks, CPP front and rear sway bar, CPP cross members. Exhaust: 3" exhaust with x-pipe, Spintech 3000 mufflers, Hooker ceramic coated headers. Best 1/4 mile time: TBD.

09-02-2016, 03:44 PM	#12
mongocanfly Post Whore Join Date: May 2015 Location: Alabama Posts: 14,627	Re: Engine swap - Keep or sell the original 350? I'd sell..I got 1000 for my original 350 with a set of headers and the trans out of mine and couldn't believe I got that for it..that was just gonna be my starting price.. he never even tried to talk me down just handed me a roll of 100s.I've got another 350 I'm fixing to sell as well..I went LS and will probably never go back..

09-02-2016, 04:59 PM	#14
cypressbog Go Pack Go! Join Date: Nov 2005 Location: Green Bay Posts: 2,669	Re: Engine swap - Keep or sell the original 350? I'd get rid of it. There's no such thing as 'numbers matching' on these trucks.

09-02-2016, 05:25 PM	#15
Kw69 Registered User Join Date: Sep 2015 Location: Florida Posts: 111	Re: Engine swap - Keep or sell the original 350? Not to sound stupid.. But I thought there was numbers matching... Oh well learn something everyday. I still have the engine that came with my truck. I will admit that the new LS engine are awesome ! __________________ 2009 GMC 2500HD 6.0, 6 speed auto, stealth grey, 4x4 Z71, Bilsteins, Black Bear Tuned. Pulls the 10k fifth wheel all so easy. 1969 CST 350 black long bed, 3 on the floor, PS, AC, drum brakes, old school and love it.

09-02-2016, 05:59 PM	#17
Coley Registered User Join Date: Oct 2011 Location: Victoria, B.C Posts: 3,794	Re: Engine swap - Keep or sell the original 350? Hang onto that motor. It ties the history of your truck together and if you ever sell it...that does count in its financial favour. Plus, the amount you get for it won't offset the loss of it in the long term relative to its value. Now that said, trucks don't have matching numbers with their engines but they do have year/size/series/trans/engine connections that link them. ...unless you are doing a full dropped, non-original mod...then the history is out the window anyways. I know if would matter to me if I was looking at buying a mostly original truck...I would be more interested knowing that motor was around. My two bits. Coley __________________ ....for some men, there is experience, skill and effort....for the others...there is visa and UPS LOL 1966 Chevy 1/2 ton (Florida- Red/white) 1972 Chevy 1/2 ton (California- Blue/white) 2005 Chevy Silverado HD2500/Duramax 2000 Dodge Ram 1500



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09-02-2016, 07:30 PM	#18
Kw69 Registered User Join Date: Sep 2015 Location: Florida Posts: 111	Re: Engine swap - Keep or sell the original 350? Good to know! Yep I am trying to keep mine original as possible. OP I would be keeping that engine covered and put away for future use. I traced mine back to 69, so I'm definitely keeping mine despite having a drop in engine in the bay now. I will have the origainl rebuilt and put in back in and use the crate drop in for another project... __________________ 2009 GMC 2500HD 6.0, 6 speed auto, stealth grey, 4x4 Z71, Bilsteins, Black Bear Tuned. Pulls the 10k fifth wheel all so easy. 1969 CST 350 black long bed, 3 on the floor, PS, AC, drum brakes, old school and love it.

09-02-2016, 08:26 PM	#19
palallin Registered User Join Date: Jul 2002 Location: St. James, MO Posts: 1,239	Re: Engine swap - Keep or sell the original 350? If you value originality at all, keep the 350, and, for goodness sake, don't put an LS into it. __________________ '69 Longstep K-10: 327/SM465/T-221/Closed Knuckle Dana44/12-bolt.

09-03-2016, 04:16 AM	#20
cblock Registered User Join Date: Apr 2015 Location: chulavista ca Posts: 28	Re: Engine swap - Keep or sell the original 350? I think it's all up to your possibilities, if you can do without the extra couple hundred bucks and have the room to store it, i'd say keep it. When you want to sell something you practically have to give it away and when you want to buy that same object it'll cost you an arm and a leg

09-03-2016, 02:15 PM	#21
DeadheadNM Carpe manana Join Date: Dec 2010 Location: Eau Claire, WI Posts: 12,363	Re: Engine swap - Keep or sell the original 350? I'd keep it if possible. True no "number matching" BUT there is a code stamped on the RH side of the block that denotes its application unless that has been machined off. When I'm buying, if the original motor is there I consider that to be a big plus. For my K20 rebuild I drove to another state to collect a complete, correct code motor from a 55k mile survivor K20 Suburban the owner removed for an LS swap (I skipped decking the block to preserve the application code). The seller later regretted his decision to sell. __________________ 1972 K5 CST Highlander Blazer: http://67-72chevytrucks.com/vboard/s...d.php?t=708547 1972 K20 Cheyenne Super: http://67-72chevytrucks.com/vboard/s...d.php?t=528308 Members met: ORANGBLAZ, 2003 silverado, MikeCofield, BB72CHEVKT, Duncan&Son, Sameyrasmea72, THENEWMEXICAN, HotRod C/10, brianthelion02, Sport/Truck, ryanroo, michael bustamante, Dirt's72, Already Gone, WestButteTruck, 57taskforce, Moreyel, painterljp, AASmedic, SoCoC10, Lumaestas, carbuff382, Chevyland

09-04-2016, 01:30 AM	#22
Already Gone 70+ ( Old Skool Club ) Join Date: Nov 2003 Location: Saskatoon, Saskatchewan ,Canada Posts: 9,111	Re: Engine swap - Keep or sell the original 350? I have thought about this subject often so this thread is a definite interesting read. __________________ 1972 C10 Custom/Deluxe 613 Highlander 406/700R4 1999 White Tahoe LS 4x2 with Z56 Police Package 1992 K1500 GMC Suburban Members I have personally met: MusicMan70 - HeavyD - ChewyChevy67 - StingRay -71SWB4x4 - 67 Burb - DeadheadNM - too much stuff - bc65 - das601 " Circumsatances Do Not Change Responsibility " " The Sky is not the Limit, Your Mind is." Marilyn Monroe .. RIP Charlie Watts 1941 - 2021

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