engine - The 1947 - Present Chevrolet & GMC Truck Message Board Network

pokethesmot · 02-08-2009, 09:15 PM

well my truck came from the factory as a diesel but the previous owner put a sbc 400 in it now my question is if my sbc 400 gets warn out should i put the 6.2 diesel back in it or just redo the 400 i use my truck as a DD and every now and then i do a little vehicle recovery for money and some mud bogging

**old Rusty C10** · 02-08-2009, 09:20 PM

as far as im concerned i love any chevy/gmc with the old reliable 350

gchemist · 02-08-2009, 09:53 PM

My choices in order.
LS1
383 with aluminum heads
350 Ram Jet
ZZ4
5.3 LS

Restrorob · 02-08-2009, 10:22 PM

What else would you expect a 502 owner to recommend ?

**N2TRUX** · 02-08-2009, 11:00 PM

Why would you go through the trouble of putting a diesel back in it? If your not going to use it for any of the intended purposes of the diesel gives you then it's a wasted effort and you will be paying double (or more) in fuels costs.

There are many members here that have found ways to make the 6.2 diesel a good option for it's intended purpose. Using it as a DD is not one of them.

*78 Chevyrado* · 02-09-2009, 12:33 AM

If you do ditch the 400, I want it...lol

If you're not worried about mileage, just torque, the only thing that will beat a 400 is a big block. and LS engines are expensive. 400's the best bang for the buck.

84 400 · 02-09-2009, 01:15 AM

yeah . 400 is a great small block. one of the best in my opinion. It all depends on what ur after. Sounds like it suits ur needs but I can imagine your looking to get alittle better fuel milliage because it is a DD. Nice thing about the 6.2's is with an electric trans 4l60/4l80e you can pull 20 plus mpg but with the price now a days it is not worth it unless ur after the torque. 6.2's where never the best diesel out there but they did well in the fuel millage. I would run the 400 till it goes saving up some money then rebuild it better then stock into a 406. If your like me an LSX motor is not an option money wise.......

James McClure · 02-09-2009, 05:37 AM

Like Bob says, stuff a fresh 350 in it and go. It's quick, easy & pretty cheap.

pokethesmot · 02-09-2009, 11:15 AM

well since alot of you are saying keep the 400 what can i do to get a little more gas millage from it

**N2TRUX** · 02-09-2009, 11:41 AM

Start with the basics. Get a "good" tune on the motor and carb. Find someone that "really" knows carbs and have it adjusted properly. Make sure you have a quality air filter in your breather. If you don't have a K&N get one. Convert to a clutch fan, or consider electric fans.

What gears are you running?

andrewmp6 · 02-09-2009, 11:35 PM

Yeah ls1 or ls2 maybe ls3.

willett · 02-10-2009, 03:06 AM

350's are a dime-a-dozen.....

tvblazer78 · 02-10-2009, 10:49 AM

400 all the way..

chevyrestoguy · 02-10-2009, 12:26 PM

Fo Hunnert.

View Poll Results: witch engine
sbc 400	13	56.52%
6.2 l diesel	2	8.70%
other(please specify)	8	34.78%
Voters: 23. You may not vote on this poll

02-08-2009, 09:15 PM	#1
pokethesmot profeshinaly unimployed Join Date: Dec 2008 Location: hazlehurst, GA Posts: 1,232	engine well my truck came from the factory as a diesel but the previous owner put a sbc 400 in it now my question is if my sbc 400 gets warn out should i put the 6.2 diesel back in it or just redo the 400 i use my truck as a DD and every now and then i do a little vehicle recovery for money and some mud bogging __________________ my ride click here my myspace "having mud flaps is like asking for a smaller trophy"

02-08-2009, 09:20 PM	#2
old Rusty C10 Robert Olson Transport Join Date: Oct 2002 Location: recent transplant to NC USA Posts: 20,299	Re: engine as far as im concerned i love any chevy/gmc with the old reliable 350 __________________ Bob 1951 International running on a squarebody chassis "If a man's worth is judged by the people he associates himself with, then i am the richest man in the world knowing some of the fine people of this board" http://67-72chevytrucks.com/vboard/a...t.php?f=25&a=9 (you can review the site rules here!) PM Me for your vehicle/parts hauling needs in the North East US or see my Facebook page Robert Olson Transport Live each day to the fullest.. you never know when fate is going to pull the rug out from under you... I hate cancer!!

02-08-2009, 09:53 PM	#3
gchemist BAD BOW-Silverado XST Join Date: May 2000 Location: Senior Member from Austin, TX Posts: 6,431	Re: engine My choices in order. LS1 383 with aluminum heads 350 Ram Jet ZZ4 5.3 LS __________________ Gerardo a.k.a. Mad Chemist Silverado XST videos

02-08-2009, 10:22 PM	#4
Restrorob The One And Only !!! Join Date: Jan 2007 Location: Hole in the woods Florida Posts: 4,567	Re: engine What else would you expect a 502 owner to recommend ? __________________ 93 Jeep XJ 88 Buick La Sabra Toys; 88 TA-GTA in the works.... 97 GMC Ext. Cab 502 Crate 5 Spd......Sucks Gas But Haulz Azz ! The primary function of an Engineer is to make it difficult for the Fabricator and impossible for the Mechanic. *"Why go out preserved when you can go out beat up, worn out, sliding in sideways screaming, Holy Sh!t What A Ride" !!!*

02-08-2009, 11:00 PM	#5
N2TRUX Happy to be here Join Date: Mar 2000 Location: Cypress, TX Posts: 39,023	Re: engine Why would you go through the trouble of putting a diesel back in it? If your not going to use it for any of the intended purposes of the diesel gives you then it's a wasted effort and you will be paying double (or more) in fuels costs. There are many members here that have found ways to make the 6.2 diesel a good option for it's intended purpose. Using it as a DD is not one of them. __________________ Follow me on Facebook and Instagram @N2trux.com Articles- "Jake" the 84 to 74 crewcab "Elwood" the77_Remix 85 GMC Sierra "Scarlett" "Refining Sierra"

02-09-2009, 12:33 AM	#6
78 Chevyrado Account Suspended Join Date: Dec 2007 Location: Unnapreciative, Trollville Posts: 2,079	Re: engine If you do ditch the 400, I want it...lol If you're not worried about mileage, just torque, the only thing that will beat a 400 is a big block. and LS engines are expensive. 400's the best bang for the buck.

02-09-2009, 01:15 AM	#7
84 400 Sb 400 club Join Date: Nov 2005 Location: NH / MA Posts: 2,745	Re: engine yeah . 400 is a great small block. one of the best in my opinion. It all depends on what ur after. Sounds like it suits ur needs but I can imagine your looking to get alittle better fuel milliage because it is a DD. Nice thing about the 6.2's is with an electric trans 4l60/4l80e you can pull 20 plus mpg but with the price now a days it is not worth it unless ur after the torque. 6.2's where never the best diesel out there but they did well in the fuel millage. I would run the 400 till it goes saving up some money then rebuild it better then stock into a 406. If your like me an LSX motor is not an option money wise....... __________________ 1984 chevy c10, built 400sb,.(SOLD) 77 K10 Project / daily driver "The Grinch" http://67-72chevytrucks.com/vboard/s...d.php?t=318363 1956 Willys Wagon (327 chevy) Project (Now Buick 225) 1980 Corvette L-48 4 speed 1992 Mustang GT built 5.0 5 speed 1985 C10 LWB Sold 1982 K10 SWB plow truck Parted out 1986 D30 M1028 fire brush truck Parted out

02-09-2009, 05:37 AM	#8
James McClure One shot, one kill. Join Date: Dec 2007 Location: Saratoga Springs NY Posts: 859	Re: engine Like Bob says, stuff a fresh 350 in it and go. It's quick, easy & pretty cheap. __________________ 1984 K20 350M engine with 465,000 miles. Well, it's finally done!! Almost 2 years of work, but it was really worth the effort. Little stuff left to do is mount winch, wet sand & buff out and build belly pan\running boards. Body work takes lots and LOTS of beer!!!! God, Guts and Guns made America and God, Guts and Guns will preserve it! The worst thing you could do is get into my sights, but that don't matter, you'll never know it, cause you'll never hear the shotJim or Paladin whichever you choose.

02-09-2009, 11:15 AM	#9
pokethesmot profeshinaly unimployed Join Date: Dec 2008 Location: hazlehurst, GA Posts: 1,232	Re: engine well since alot of you are saying keep the 400 what can i do to get a little more gas millage from it __________________ my ride click here my myspace "having mud flaps is like asking for a smaller trophy"

02-09-2009, 11:41 AM	#10
N2TRUX Happy to be here Join Date: Mar 2000 Location: Cypress, TX Posts: 39,023	Re: engine Start with the basics. Get a "good" tune on the motor and carb. Find someone that "really" knows carbs and have it adjusted properly. Make sure you have a quality air filter in your breather. If you don't have a K&N get one. Convert to a clutch fan, or consider electric fans. What gears are you running? __________________ Follow me on Facebook and Instagram @N2trux.com Articles- "Jake" the 84 to 74 crewcab "Elwood" the77_Remix 85 GMC Sierra "Scarlett" "Refining Sierra"

02-09-2009, 11:35 PM	#11
andrewmp6 Registered User Join Date: Jan 2009 Location: Louisville,Ky Posts: 5,811	Re: engine Yeah ls1 or ls2 maybe ls3.

02-10-2009, 03:06 AM	#12
willett Another Day, Another Dollar Join Date: Nov 2008 Location: North Vancouver, BC Posts: 1,316	Re: engine 350's are a dime-a-dozen..... __________________ -78 K20 Cheyenne 454 long box, 4" lift, 35" MT's, '84 cab, '80 box "its hip to be square"

02-10-2009, 10:49 AM	#13
tvblazer78 Low & Fast! Join Date: Jan 2007 Location: Knoxville, TN Posts: 3,110	Re: engine 400 all the way.. __________________ Southeastern Mini Truckin' Nationals April 27 and 28, 2012

02-10-2009, 12:26 PM	#14
chevyrestoguy Registered User Join Date: Mar 2005 Location: apple valley, ca Posts: 2,670	Re: engine Fo Hunnert.



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