383 or ls1 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

WEBBY1 · 10-22-2013, 03:52 AM

I have a 65 burban..can't make my mind up.. I got a buddy that has a fresh 383 for 1200.. I want it to be quick. I know it's a lot easier dropping a carb motor in rather then a ls1.. what do you guys think?

lowlife4life · 10-22-2013, 06:20 AM

I've always went carbureted. It has always been easier. Now I just bought a 6. L and 4l80 for my 63. Aftermarket and sites like this have made the ls swap easy now. just my .02 but it will be nice to tune my truck without having to shower before I get back in it

**PGSigns** · 10-22-2013, 07:06 AM

I am going LS with my 65. Power and drivability is unbeatable. I paid $700 for my engine out of a 07 tahoe with 31000 miles on it.
Jimmy

scottofksu · 10-22-2013, 08:13 AM

Assuming it's really no more than a drop-in, I would say that the $1,200 for the 383 is going to be very tough to beat... That being said, given the choice, I would go the LS/LM route... The reason being, greater power potential, potentially better fuel economy, and better longevity. However, I would keep the injection on the LS... I saw an episode on Trucks where they took a 2001 Silverado Fuel Pump and showed how easily it can be installed in a Blazer tank that is swapped into the rear of a truck (it was a 67-72, but the same rules apply). That would provide the psi that the injection needs. You can then send your wiring harness and computer off and for about $200 they'll send you back your harness with all of the stuff you don't need removed and will reflash the computer to allow the engine to work in it's new environment and form (i.e., with the harness altered). All that being said, I can't imagine that you'd be able to swap in an LS/LM for anywhere near cheaper than the 383. That's why I am going the 383 route for now myself... Figure I can always pull it and toss it in a Camaro or maybe my MGB...

Good Luck!

TJ's Chevy · 10-22-2013, 09:55 AM

When restoring an old truck I prefer the older look. I think the 383 cause it would look better, and those things have some power to! But it your money. Whatever works for you! Can't wait to see your progress!

JGross · 10-22-2013, 10:11 AM

I just put a 5.3L and a 4l60 in my 65, it was out of a 2002 silverado, when I got the truck it had a 350 and a TH400. I modified the wiring harness myself and sent the PCM off to be re-programed ($75). I have to say that given the choice from now on I will always go with a LS based engine. The drivability is much better and the startup and tuning is not a problem at all.

sandiego65 · 10-22-2013, 11:05 AM

Is only because I want one too!

WEBBY1 · 10-22-2013, 03:07 PM

roar! the 383 is complete.. drop it in and turn the key... id race it for sure.. im starting to second guess myself now... like stated before the ls is where the power is at... I guess for now ill go with the 383.. maybe later down the road ill switch to a ls1... it's a little more money for an ls swap right? as far as putting decent numbers to the tires?

donthekawguy · 10-22-2013, 06:56 PM

I would get the 383 for now and keep an eye out for a wrecked tahoe or truck or whatever. Pull the 383 and put it in a vega or datsun or whatever.

WEBBY1 · 10-23-2013, 06:45 AM

im going 383... ive finally decided.. should be picking it up this weekend. ill post pics when it's under my pillow

blazer-k5 · 10-23-2013, 06:41 PM

Quote:

Originally Posted by WEBBY1

im going 383... ive finally decided.. should be picking it up this weekend. ill post pics when it's under my pillow

Wish I had a 383 under my pillow...

par4tom · 10-23-2013, 06:42 PM

I just put a 383 stroker in mine...about 420 hp from Engine Kits in Bakersfield CA. Unbelievable the amount of torque that sucker has compared to the old 350. I'm starting to think it may have TOO much power...

Either way, you'll be happy!
Tom

blazer-k5 · 10-23-2013, 06:48 PM

Too much? Are you breaking parts?

10-22-2013, 03:52 AM	#1
WEBBY1 Registered User Join Date: Dec 2011 Location: Royal Oak, Michigan Posts: 193	383 or ls1 I have a 65 burban..can't make my mind up.. I got a buddy that has a fresh 383 for 1200.. I want it to be quick. I know it's a lot easier dropping a carb motor in rather then a ls1.. what do you guys think?

10-22-2013, 06:20 AM	#2
lowlife4life Registered User Join Date: Jul 2013 Location: grande prairie alberta Posts: 324	Re: 383 or ls1 I've always went carbureted. It has always been easier. Now I just bought a 6. L and 4l80 for my 63. Aftermarket and sites like this have made the ls swap easy now. just my .02 but it will be nice to tune my truck without having to shower before I get back in it

10-22-2013, 07:06 AM	#3
PGSigns Senior Member Join Date: Jan 2011 Location: Hayes Va Posts: 4,569	Re: 383 or ls1 I am going LS with my 65. Power and drivability is unbeatable. I paid $700 for my engine out of a 07 tahoe with 31000 miles on it. Jimmy __________________ 60 to 66 Chevy and GMC window decals http://67-72chevytrucks.com/vboard/s...d.php?t=661131 Good friends, good food and a hotrod what else do you need? 1966 BBW long fleet Daily driver 1965 BBW short fleet Sold and going to a good home 1965 Suburban 2003 3500 Duramax 2005 Ultra Classic

10-22-2013, 08:13 AM	#4
scottofksu Registered User Join Date: Nov 2011 Location: Omaha, Nebraska Posts: 437	Re: 383 or ls1 Assuming it's really no more than a drop-in, I would say that the $1,200 for the 383 is going to be very tough to beat... That being said, given the choice, I would go the LS/LM route... The reason being, greater power potential, potentially better fuel economy, and better longevity. However, I would keep the injection on the LS... I saw an episode on Trucks where they took a 2001 Silverado Fuel Pump and showed how easily it can be installed in a Blazer tank that is swapped into the rear of a truck (it was a 67-72, but the same rules apply). That would provide the psi that the injection needs. You can then send your wiring harness and computer off and for about $200 they'll send you back your harness with all of the stuff you don't need removed and will reflash the computer to allow the engine to work in it's new environment and form (i.e., with the harness altered). All that being said, I can't imagine that you'd be able to swap in an LS/LM for anywhere near cheaper than the 383. That's why I am going the 383 route for now myself... Figure I can always pull it and toss it in a Camaro or maybe my MGB... Good Luck! __________________ Travis' Tribute Truck - 65 C10 Frame Up Restoration http://67-72chevytrucks.com/vboard/s...d.php?t=495073

10-22-2013, 09:55 AM	#5
TJ's Chevy Registered User Join Date: Mar 2013 Location: Southern Oregon Posts: 10,384	Re: 383 or ls1 When restoring an old truck I prefer the older look. I think the 383 cause it would look better, and those things have some power to! But it your money. Whatever works for you! Can't wait to see your progress! __________________ 1966 Chevy C10 "Project Two Tone" http://67-72chevytrucks.com/vboard/s...d.php?t=596643 1964 GMC "Crustine" semi-build:http://67-72chevytrucks.com/vboard/s...d.php?t=665056 My youtube channel. Username "Military Chevy": https://www.youtube.com/channel/UC_h...fzpcUXyK_5-uiw

10-22-2013, 10:11 AM	#6
JGross Registered User Join Date: Apr 2010 Location: Hattiesburg Ms Posts: 235	Re: 383 or ls1 I just put a 5.3L and a 4l60 in my 65, it was out of a 2002 silverado, when I got the truck it had a 350 and a TH400. I modified the wiring harness myself and sent the PCM off to be re-programed ($75). I have to say that given the choice from now on I will always go with a LS based engine. The drivability is much better and the startup and tuning is not a problem at all.

10-22-2013, 11:05 AM	#7
sandiego65 Registered User Join Date: Dec 2011 Location: san diego california Posts: 143	Re: 383 or ls1 Is only because I want one too!

10-22-2013, 03:07 PM	#8
WEBBY1 Registered User Join Date: Dec 2011 Location: Royal Oak, Michigan Posts: 193	Re: 383 or ls1 roar! the 383 is complete.. drop it in and turn the key... id race it for sure.. im starting to second guess myself now... like stated before the ls is where the power is at... I guess for now ill go with the 383.. maybe later down the road ill switch to a ls1... it's a little more money for an ls swap right? as far as putting decent numbers to the tires?

10-22-2013, 06:56 PM	#9
donthekawguy Registered User Join Date: Aug 2012 Location: Rathdrum ID Posts: 1,129	Re: 383 or ls1 I would get the 383 for now and keep an eye out for a wrecked tahoe or truck or whatever. Pull the 383 and put it in a vega or datsun or whatever. __________________ 66 shorty

10-23-2013, 06:45 AM	#10
WEBBY1 Registered User Join Date: Dec 2011 Location: Royal Oak, Michigan Posts: 193	Re: 383 or ls1 im going 383... ive finally decided.. should be picking it up this weekend. ill post pics when it's under my pillow

10-23-2013, 06:42 PM	#12
par4tom Registered User Join Date: Nov 2012 Location: Kingsburg CA Posts: 581	Re: 383 or ls1 I just put a 383 stroker in mine...about 420 hp from Engine Kits in Bakersfield CA. Unbelievable the amount of torque that sucker has compared to the old 350. I'm starting to think it may have TOO much power... Either way, you'll be happy! Tom __________________ My Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=705185 How to Get Audiophile Sound in 60-66 Trucks http://67-72chevytrucks.com/vboard/s...=1#post7236896 Building Your Own Speaker Kick Pods http://http://67-72chevytrucks.com/vboard/showthread.php?t=730495

10-23-2013, 06:48 PM	#13
blazer-k5 Registered User Join Date: Jan 2003 Location: Mcloud,Ok Posts: 157	Re: 383 or ls1 Too much? Are you breaking parts? __________________ No trees were killed to send this note but a large number of electrons were terribly inconvenienced. AKA. RABIDJOE... if you have to ask you prob don't want to know. Ive had my shots dont worry 1960 235 4SPD C30



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