New to the group - which engine?? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

72CheyenneRY · 08-26-2004, 03:36 PM

Hello Gentlemen, I have a '72 Cheyenne LWB, all original except the engine. I am planning on putting an LS1/4L60 in it this next spring. Would you go with the 5.7 or the 6.0 version. I have heard that the 5.7 would be quicker and get better mileage, but get more torque with the 6.0. This is my first post and will attempt to load pics.

Putter · 08-26-2004, 03:37 PM

Welcome to the board from Central Mississippi. Best place ever for all your questions....although I have no answer to this question.

wink_tim · 08-26-2004, 04:20 PM

Welcome from Rowlett, TX....

krue · 08-26-2004, 07:41 PM

I know nothing about the newer engines, but the more torque the better in my book!

Welcome to the board from South Mississippi!

mikep684x4 · 08-26-2004, 08:02 PM

Got the same set up in my 71. Vortec out of a 97.I went with the 5.7 and put in a 100hp prom.The thing hauls,gets fairly good milage,and has enough torqe to rip my 35's loose for a pretty good distance.Wasen't that hard to put in.Alot easier than the tpi motor I had first.

Blue Beard · 08-26-2004, 08:16 PM

Welcome from SW Washington State....

72CheyenneRY · 08-27-2004, 01:26 PM

Thanks for the welcome... Hey MikeP did you put in a bed tank? fuel cell or blazer? did you use in-tank or in-line pump? Also, did you change out your ignition switch or install a relay, I hear the swap puts too much power through the original switch.

donkey69 · 08-27-2004, 09:57 PM

Welcome from MN......

9footfan · 08-27-2004, 10:16 PM

welcome from austin!

***Josh*** · 08-27-2004, 10:22 PM

The 6.0 will put our more powe and torque, but out of the box the LS1 5.7 has the edge, modify the 6.0 though and itll outrun LS1s all day. If you look at 4th gen 98+ camaro speed shops/pages there are hundreds of different ways to build either motor. The 6.0 is probably more suited to a truck, with a mild cam it'd be 350+horse power with the drieability of EFI, gas mileage wit teh 6.0s isn't that great tho. And lastly, Welcome to the boards.

68LSS1 · 08-28-2004, 05:53 AM

It depends. Are you after speed or are you going to race the truck? If so go with the 6.0 set up and stroke it. If not go with the 5.7. Even the 5.7 with heads/cam will be be good for 400-450 rwhp (depending on how wild you go with the cam). Can't say anything about the fuel economy with the auto but with a six speed and 6.0 22+mpg are attainable in my freinds '99 SS.

08-26-2004, 03:36 PM	#1
72CheyenneRY Registered User Join Date: Aug 2004 Location: Carrollton, TX Posts: 4	New to the group - which engine?? Hello Gentlemen, I have a '72 Cheyenne LWB, all original except the engine. I am planning on putting an LS1/4L60 in it this next spring. Would you go with the 5.7 or the 6.0 version. I have heard that the 5.7 would be quicker and get better mileage, but get more torque with the 6.0. This is my first post and will attempt to load pics.

08-26-2004, 03:37 PM	#2
Putter More Cowbell.... Join Date: Mar 2004 Location: Puckett, MS Posts: 3,569	Welcome to the board from Central Mississippi. Best place ever for all your questions....although I have no answer to this question. __________________ *There once was a member from Puckett.....Who ( fill in the blank blank blank* ) bucket**

08-26-2004, 04:20 PM	#3
wink_tim Registered User Join Date: Jun 2003 Location: Rowlett, TX Posts: 120	Welcome from Rowlett, TX.... __________________ 67 SWB

08-26-2004, 07:41 PM	#4
krue Designated A-hole! Join Date: Mar 2003 Location: South Mississippi Posts: 36,448	I know nothing about the newer engines, but the more torque the better in my book! Welcome to the board from South Mississippi! __________________ "If it ain't broke, fix it 'til it is!" Being stupid ain't illegal. We're Still Debt Free Except for the House!!! www.daveramsey.com 70 GMC SWB Stepside project "Green Booger" soon to be 6.0l/4l80e 93 S-10 "Poppaw's Truck"

08-26-2004, 08:02 PM	#5
mikep684x4 Seeker of the big and bad Join Date: Nov 2000 Location: wheatland,Calif,yuba Posts: 105	Got the same set up in my 71. Vortec out of a 97.I went with the 5.7 and put in a 100hp prom.The thing hauls,gets fairly good milage,and has enough torqe to rip my 35's loose for a pretty good distance.Wasen't that hard to put in.Alot easier than the tpi motor I had first. __________________ 71 3/4 ton 4x4,665hp 454. 67 GMC 1 ton towtruck 68 chevy LB 4x4 64 chevy LB custom 57 Bel-air 2d station wagon

08-26-2004, 08:16 PM	#6
Blue Beard Registered User Join Date: Jan 2003 Location: Washington State Posts: 8,831	Welcome from SW Washington State.... __________________ 1970 Chev CST 2003 Harley Fatboy 1975 Chevrolet Step Van 1956 Chev Bel Air 1977 Blazer 2WD For Sale $3000.00 1978 Blazer 2WD For Sale $7000.00 1978 Silverado 2005 Monte Carlo

08-27-2004, 01:26 PM	#7
72CheyenneRY Registered User Join Date: Aug 2004 Location: Carrollton, TX Posts: 4	Just curious Thanks for the welcome... Hey MikeP did you put in a bed tank? fuel cell or blazer? did you use in-tank or in-line pump? Also, did you change out your ignition switch or install a relay, I hear the swap puts too much power through the original switch.

08-27-2004, 09:57 PM	#8
donkey69 JB-80 &quot;Twice as Good&quot; Join Date: Jun 2004 Location: Central, MN Posts: 354	Welcome from MN...... __________________ HEY NOW!

08-27-2004, 10:16 PM	#9
9footfan get up! stand up! Join Date: Apr 2004 Location: austin,tx Posts: 345	welcome from austin! __________________ 9FT STEPSIDE CLUB 40 1-1/2 ton stake 67 c30 disassembled & for sale 70 gmc 3500 canadian 9 foot "fenderside" pickup 06 silverado 71 vet enjoyed by my retired father wtb-67 chevy 1 ton 9ft stepside-in perfect condition

08-27-2004, 10:22 PM	#10
*Josh* He's got mean nasty FANGS! Join Date: Dec 1999 Location: Rockwell, NC Posts: 6,514	The 6.0 will put our more powe and torque, but out of the box the LS1 5.7 has the edge, modify the 6.0 though and itll outrun LS1s all day. If you look at 4th gen 98+ camaro speed shops/pages there are hundreds of different ways to build either motor. The 6.0 is probably more suited to a truck, with a mild cam it'd be 350+horse power with the drieability of EFI, gas mileage wit teh 6.0s isn't that great tho. And lastly, Welcome to the boards. __________________ 2004 K2500 Burb 1999 C3500 1985 Cutlass Supreme 1969 C-10 1967 C-10 Panel josh@67-72chevytrucks.com

08-28-2004, 05:53 AM	#11
68LSS1 Registered User Join Date: Dec 2002 Location: Tampa Posts: 1,191	It depends. Are you after speed or are you going to race the truck? If so go with the 6.0 set up and stroke it. If not go with the 5.7. Even the 5.7 with heads/cam will be be good for 400-450 rwhp (depending on how wild you go with the cam). Can't say anything about the fuel economy with the auto but with a six speed and 6.0 22+mpg are attainable in my freinds '99 SS. __________________ '68 Short Step LS1/T56, Hydratech, Fatman Fabrications Stage III, Baer, Hot Rods to Hell, US Body, S&W, etc



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