hello all, first time in here and have ? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

2big4u · 04-07-2005, 12:07 AM

hello, i just picked up a 1972 402 w/t.h. 400 for 100$ can anyone tell me about this motor? is it powerful? how much different than a 454? is it harde to get? rarer? is it gonna have more kick than a 350 f.i.? sorry for all the ?'s but it isn't installed yet and i am very curious to find out what she'll do?

*screamin_c102* · 04-07-2005, 12:09 AM

Let me be the first to welcome you to our board.

There are several guys runnin' that motor that can give you excellent info...stick around!

2big4u · 04-07-2005, 12:12 AM

t.y.

Swbman · 04-07-2005, 12:21 AM

First Off, Welcome aboard and I know I can speak for quite a few folks that you got yourself a Screaming Deal on your recently acquired truck.A BBC Rig for a mere 100 bills.Way to Go.

stllookn · 04-07-2005, 12:27 AM

Welcome to the board from Seattle, WA. It will most likely have more torque than a stock 350...depending upon the particular 350 but could also have less than a high performance 350. Get the casting numbers off the back of the block and the stamped numbers off the top of the block on the forward edge of the passenger side deck. Then we can start to determine what it is. Sounds like a good deal if it is a runner!

2big4u · 04-07-2005, 12:29 AM

it is a 72 402 ive seen the stamp/tag on the valve cover and i know the guy that sold it to me well.

Rod · 04-07-2005, 12:34 AM

Like they say ..screaming deal.

Welcome.

Edmond · 04-07-2005, 02:24 AM

from The Netherlands!!

$100!! That's a great deal!! Do you have any pictures?
Have fun on this board, the best source on the net!

Cya,
Edmond

LUV2XCLR8 · 04-07-2005, 04:56 AM

2 THE BOARD FROM WEST 10-UH-C

dwaite72lnghrn · 04-07-2005, 05:46 AM

Welcome to the board. The 402 when new had more torque and HP than the stock 350 in our trucks. BBC have more torque in the low end and make "EASY" hp. The 402 in '72 had more HP and troque than the late '70 454 because of the pollution control on the later engines. 454 is larger bore and longer stroke than the 402, The longer stroke on the 454 can make more torque than a 402 when built up. The BBC also feel stronger than a 350 on the ramp up in a heavy truck. But a built SBC will wind out higher and stay there longer than a BBC. In an empty truck of 4000lb's or more the BBC and a SBC will be about the same but if you are hauling anything or towing the BBC will do it easier, cooler, and more economically.
Rebuilding a BBC is about $1200 in parts alone and to rebuild a SBC you are probably looking at $500 in parts.
As far as rare goes all old BBC 396/402/427 are getting harder to find, But the 454 are still plentiful as most people today are going with the gen V,VI block 502-572 cubic.
inch.
I have been running mine for about 23 years and with a BBC you can really be running on 6-7 cylinders and not even know it because of the power on these things. I went to change plugs 1 time and found 1 loose in the head(like only being held by the plug wire) and 1 boken plug wire. I had been hauling a slide in camper (truck weight around 8700lb) all over hill and dale and never felt the drop in power.
Have fun.

Old Dave · 04-07-2005, 06:56 AM

Welcome from Kansas and sounds like you got a heck of a deal on the truck. Like was said above...need pictures. Lots of good people hang out hear and a wealth of knowledge is yours for the asking.

*dtlilly* · 04-07-2005, 11:10 AM

Welcome to the board! What's your location? I'd like to come and take that engine from you so you don't have to deal with it... hey, what are friends for?

junkyardjohn · 04-07-2005, 12:00 PM

SOUNDS LIKE A SCREAMIN DEAL ON YOUR NEW TRUCK. LIKE WAS STATED ABOVE... THERES A WEALTH OF INFORMATION HERE JUST FOR THE ASKING. JOHN

Joe67 · 04-07-2005, 12:09 PM

Quote:

Originally Posted by 2big4u

hello, i just picked up a 1972 402 w/t.h. 400 for 100$ can anyone tell me about this motor? is it powerful? how much different than a 454? is it harde to get? rarer? is it gonna have more kick than a 350 f.i.? sorry for all the ?'s but it isn't installed yet and i am very curious to find out what she'll do?

Welcome

Great deal on your truck

2big4u · 04-08-2005, 12:04 AM

hello to all again, sorry i couldn't answer last night, i went to bed. thanx for the info on the 402. I can't wait to throw it in my car, is that bad? no it's not a truck, sorry it is a 63 chevrolet impala ss, i bought the car with no engine or tranny so i wanted to go big for the first time. the 100$ was in the form of a 1989 chevy 1500 2w.d. with 700r4 tranny and 350 f.i. the truck was in fair condition in and out the engine was very sound but it had about 190,000 miles and was used for pulling job trailers. my boss got an inheritance so he went new on his truck and i bought the leftover 89 1500 for 100$ he thought the starter was bad, nope tightened the nut, he thought the radiator leaked, nope tightened the upper hose clamp, so that is how i got my $100 402. as for pictures no problem except that i am not very computer literate, so i don't even know where to begin to get pictures in here "maybe mail them to somebody else to post" lol

dwaite72lnghrn · 04-08-2005, 05:11 AM

Where are you located?
The only problem you have now is finding a transmission and flexplate/flywheel that would fit in the Impala. I think the combo you got out of the truck has the big flexplate which is going to cause problems with bottoming out in the impala. Most cars ran a 12" 153 tooth flexplate, Your trans out of the truck has a 14" 168 tooth flexplate. But with a little adjusting it could be a screamer. It will definitly burn your tires off real quick.
Not sure if 63 was the first year for the 409 BBC in the impalas or not.
http://www.chevytalk.com/ would have more info on the impalas. But don't leave here with out telling us what your intensions are with the truck!

TRUCKGUY · 04-08-2005, 05:32 AM

welcome to the board have fun......lotsa great people hear

04-07-2005, 12:07 AM	#1
2big4u Registered User Join Date: Apr 2005 Posts: 4	hello all, first time in here and have ? hello, i just picked up a 1972 402 w/t.h. 400 for 100$ can anyone tell me about this motor? is it powerful? how much different than a 454? is it harde to get? rarer? is it gonna have more kick than a 350 f.i.? sorry for all the ?'s but it isn't installed yet and i am very curious to find out what she'll do?

04-07-2005, 12:09 AM	#2
screamin_c102 Account Suspended Join Date: Feb 2005 Location: Yoncalla Oregon Posts: 775	Let me be the first to welcome you to our board. There are several guys runnin' that motor that can give you excellent info...stick around! Last edited by screamin_c102; 04-07-2005 at 12:11 AM.

04-07-2005, 12:21 AM	#4
Swbman Senior Member Join Date: Mar 2004 Location: Tulsa,Oklahoma Posts: 606	First Off, Welcome aboard and I know I can speak for quite a few folks that you got yourself a Screaming Deal on your recently acquired truck.A BBC Rig for a mere 100 bills.Way to Go. __________________ 1961 BUICK LESABRE 1968 CHEVELLE SS 396 1969 BUICK RIVIERA GS 1971 2 WHEEL DRIVE BLAZER 1971 4X4 BLAZER 1971 SHORTBED CHEYENNE FLEETSIDE 1971 SHORTBED 4X4 FLEETSIDE ** ...My Ebay

04-07-2005, 12:27 AM	#5
stllookn Saving 1 truck at a time! Join Date: Aug 2001 Location: Kent, WA Posts: 6,465	Welcome to the board from Seattle, WA. It will most likely have more torque than a stock 350...depending upon the particular 350 but could also have less than a high performance 350. Get the casting numbers off the back of the block and the stamped numbers off the top of the block on the forward edge of the passenger side deck. Then we can start to determine what it is. Sounds like a good deal if it is a runner! __________________ '68 C20 Longhorn 50th Anniversary 400/TH400 '68 C20 Longhorn 50th Anniversary 468/TH400w/buckets '72 C20 Halfhorn (Longhorn w/o cab and front clip) '69 Flxible Cruiser (look up ugly in the dictionary) Last edited by stllookn; 04-07-2005 at 12:27 AM.

04-07-2005, 12:34 AM	#7
Rod Join Date: Dec 1999 Location: Eastern - Manitoba Canada, Winnipeg Posts: 4,369	Like they say ..screaming deal. Welcome. __________________ Senior active founding member. 70 3/4 ton GMC Suburban 4x4 250/4 spd. 71 1/2 ton Suburban Chevy 4x4, 350/350 72 Chev 1 ton tow truck 402BB w/Holmes 440 wrecker on propane 2005 FLSTSCI Harley Springer 85 FXSB Harley Lowrider 72 Triumph 650 Bonneville 5spd "Poor people don't have hobbies" Quote from wife.

04-07-2005, 12:12 AM	#3
2big4u Registered User Join Date: Apr 2005 Posts: 4	t.y.

04-07-2005, 12:29 AM	#6
2big4u Registered User Join Date: Apr 2005 Posts: 4	it is a 72 402 ive seen the stamp/tag on the valve cover and i know the guy that sold it to me well.

04-07-2005, 02:24 AM	#8
Edmond Registered User Join Date: Jan 2000 Location: The Netherlands Posts: 1,063	from The Netherlands!! $100!! That's a great deal!! Do you have any pictures? Have fun on this board, the best source on the net! Cya, Edmond __________________ 1971 Chevy C/20 Longhorn, 350/TH400, Edelbrock Performer, IMPCO 425 LPG Carb 1974 Chevy Camaro Z28 (Original) ------------------------- The Netherlands

04-07-2005, 04:56 AM	#9
LUV2XCLR8 The LuvShack Garage Join Date: Jan 2004 Location: Maple Grove, TN (West Side) Posts: 30,468	2 THE BOARD FROM WEST 10-UH-C __________________ Owner/Op: "TN Classic Transport Carriers" The Toy: "Square Vette" 72 Hybrid Blazer Toy Barn: "LuvShack" 40 x 60 x 20 Shop Tow Piggy:"Maddy" 88 Silverado 3500 Hauler: "Feathers" 14 Aluma 8218T

04-07-2005, 05:46 AM	#10
dwaite72lnghrn Registered User Join Date: Jun 2002 Location: central pa Posts: 1,525	Welcome to the board. The 402 when new had more torque and HP than the stock 350 in our trucks. BBC have more torque in the low end and make "EASY" hp. The 402 in '72 had more HP and troque than the late '70 454 because of the pollution control on the later engines. 454 is larger bore and longer stroke than the 402, The longer stroke on the 454 can make more torque than a 402 when built up. The BBC also feel stronger than a 350 on the ramp up in a heavy truck. But a built SBC will wind out higher and stay there longer than a BBC. In an empty truck of 4000lb's or more the BBC and a SBC will be about the same but if you are hauling anything or towing the BBC will do it easier, cooler, and more economically. Rebuilding a BBC is about $1200 in parts alone and to rebuild a SBC you are probably looking at $500 in parts. As far as rare goes all old BBC 396/402/427 are getting harder to find, But the 454 are still plentiful as most people today are going with the gen V,VI block 502-572 cubic. inch. I have been running mine for about 23 years and with a BBC you can really be running on 6-7 cylinders and not even know it because of the power on these things. I went to change plugs 1 time and found 1 loose in the head(like only being held by the plug wire) and 1 boken plug wire. I had been hauling a slide in camper (truck weight around 8700lb) all over hill and dale and never felt the drop in power. Have fun. __________________ 72 longhorn c30 502BB/th400/fact air/4.11rear/ custom camper 72 bug(the better half's) under reconstruction 2009 HHR aqua blue 71 GMC k20 350/sm465 2009 Chevy hd3500 6.6 Victory Red crew cab dually Dave & Jeanne

04-07-2005, 06:56 AM	#11
Old Dave Is a bullfrog waterproof? Join Date: Nov 2000 Location: OLATHE, KANSAS Posts: 1,130	Welcome from Kansas and sounds like you got a heck of a deal on the truck. Like was said above...need pictures. Lots of good people hang out hear and a wealth of knowledge is yours for the asking. __________________ "It is better to remain silent and be thought a fool, than to open one's mouth and remove all doubt." Ben Franklin __________________ 1970 Chevy shortbed 2002 Harley Custom Chopper (Long sucker) 1998 K2500 5.7L 5-speed Longbed 1st two are My son's toys...they just live in my garage! 1997 GMC K1500 Suburban 1993 S-10 Blazer 4D (youngest son's daily driver) 2000 Dodge Ram 4WD Ext. Cab (5.9L) Wife is a late year 1951

04-07-2005, 11:10 AM	#12
dtlilly Account Suspended Join Date: Jan 2003 Location: Shadow of Lambeau Field Posts: 5,597	Welcome to the board! What's your location? I'd like to come and take that engine from you so you don't have to deal with it... hey, what are friends for?

04-07-2005, 12:00 PM	#13
junkyardjohn Registered User Join Date: Aug 2001 Location: SOMERSET KY. Posts: 6,425	SOUNDS LIKE A SCREAMIN DEAL ON YOUR NEW TRUCK. LIKE WAS STATED ABOVE... THERES A WEALTH OF INFORMATION HERE JUST FOR THE ASKING. JOHN __________________ junkyardjohn 69 1 TON TOW TRUCK // 84 4WD CUCV BLAZER// 85 1 TON 4WD STAKE TRUCK// 86 M1031 5/4 TON 4WD CUCV// ALOT OF OLD TRUCKS FOR ONE OLD MAN TO DRIVE. THERES ROOM FOR ALL OF GODS CREATURES RIGHT NEXT TO MY MASHED POTATOES// LIFE MEMBER OF P.E.T.A (PEOPLE EATING TASTY ANIMALS) DON'T RENT U-HAUL ALWAYS TELL THE TRUTH IT WILL AMAZE PART OF THE PEOPLE & ASTONISH THE REST

04-08-2005, 12:04 AM	#15
2big4u Registered User Join Date: Apr 2005 Posts: 4	hello to all again, sorry i couldn't answer last night, i went to bed. thanx for the info on the 402. I can't wait to throw it in my car, is that bad? no it's not a truck, sorry it is a 63 chevrolet impala ss, i bought the car with no engine or tranny so i wanted to go big for the first time. the 100$ was in the form of a 1989 chevy 1500 2w.d. with 700r4 tranny and 350 f.i. the truck was in fair condition in and out the engine was very sound but it had about 190,000 miles and was used for pulling job trailers. my boss got an inheritance so he went new on his truck and i bought the leftover 89 1500 for 100$ he thought the starter was bad, nope tightened the nut, he thought the radiator leaked, nope tightened the upper hose clamp, so that is how i got my $100 402. as for pictures no problem except that i am not very computer literate, so i don't even know where to begin to get pictures in here "maybe mail them to somebody else to post" lol

04-08-2005, 05:11 AM	#16
dwaite72lnghrn Registered User Join Date: Jun 2002 Location: central pa Posts: 1,525	Where are you located? The only problem you have now is finding a transmission and flexplate/flywheel that would fit in the Impala. I think the combo you got out of the truck has the big flexplate which is going to cause problems with bottoming out in the impala. Most cars ran a 12" 153 tooth flexplate, Your trans out of the truck has a 14" 168 tooth flexplate. But with a little adjusting it could be a screamer. It will definitly burn your tires off real quick. Not sure if 63 was the first year for the 409 BBC in the impalas or not. http://www.chevytalk.com/ would have more info on the impalas. But don't leave here with out telling us what your intensions are with the truck! __________________ 72 longhorn c30 502BB/th400/fact air/4.11rear/ custom camper 72 bug(the better half's) under reconstruction 2009 HHR aqua blue 71 GMC k20 350/sm465 2009 Chevy hd3500 6.6 Victory Red crew cab dually Dave & Jeanne



Register or Log In To remove these advertisements.

04-08-2005, 05:32 AM	#17
TRUCKGUY Registered User Join Date: Jan 2005 Location: Nortonville, Ky Posts: 407	welcome to the board have fun......lotsa great people hear __________________ Dan. 55 F100 panel truck project 64 350/th400/10bolt short fleet 66 F100 302/C6/9" short fleet 67 IH 4x2 304/t984speed D44 373 locker lwb box 67 IH 4x4 304/t98 4speed/d44/d60 4.10'slwb box 67 IH Travelall 4x4 304/t98 4speed/12bolt/10bolt 81 2wd short fleet current build! 83 350/700r4 short fleet 88 k5 12" lift 3/4 ton swap mud toy 96 Dodge 3500 CUMMINS/5speed/4x2 97 Pontiac Trans Am WS6/LT1 383/6speed/T-tops

Register or Log In To remove these advertisements.