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G3GM 1973 to 1977 A-bodys. Chevelles, Monte Carlos, El Caminos, Laguna, 442, Cutlass, Malibu, GTO, LeMans, Century, Regal, Grand Am, Grand Prix, Sprint, Gran Sport, Can Am, Hurst-olds, and other 73-77 A-bodies


Poll: New engine for Cutlass: Olds 455 or LS2 or LS3?

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99B4C
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Which engine?

Poll: New engine for Cutlass: Olds 455 or LS2 or LS3? I_vote_lcap71%Poll: New engine for Cutlass: Olds 455 or LS2 or LS3? I_vote_rcap 71% 
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Poll: New engine for Cutlass: Olds 455 or LS2 or LS3? I_vote_lcap14%Poll: New engine for Cutlass: Olds 455 or LS2 or LS3? I_vote_rcap 14% 
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Poll: New engine for Cutlass: Olds 455 or LS2 or LS3? I_vote_lcap0%Poll: New engine for Cutlass: Olds 455 or LS2 or LS3? I_vote_rcap 0% 
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Poll: New engine for Cutlass: Olds 455 or LS2 or LS3? I_vote_lcap14%Poll: New engine for Cutlass: Olds 455 or LS2 or LS3? I_vote_rcap 14% 
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Total Votes : 7
 
 
Poll closed

Poll: New engine for Cutlass: Olds 455 or LS2 or LS3? Empty Poll: New engine for Cutlass: Olds 455 or LS2 or LS3?

Post by DaveFury Tue Aug 09, 2016 10:54 pm

Kinda undecided on a new engine for the '76. Should I stick with old technology Oldsmobile 455 or switch to the LS platform? What do ya all think?

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Poll: New engine for Cutlass: Olds 455 or LS2 or LS3? Empty Re: Poll: New engine for Cutlass: Olds 455 or LS2 or LS3?

Post by Wallyuph Wed Aug 10, 2016 1:04 pm

LS3 but why a carb and not fuel injected?
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Poll: New engine for Cutlass: Olds 455 or LS2 or LS3? Empty Re: Poll: New engine for Cutlass: Olds 455 or LS2 or LS3?

Post by DaveFury Wed Aug 10, 2016 3:22 pm

Wallyuph wrote:LS3 but why a carb and not fuel injected?

I hate the way the intake looks on the LS platform engines. I work at a Chevy dealer, so I see 'em everyday. Why do you think GM completely covers them w/ plastic shrouds-UGLY! I figured remote mount the coil packs to clean up the valve cover area and w/o FI, no massive harnesses, just a F.A.S.T. or MSD ignition module under the dash to drive the coils.

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Poll: New engine for Cutlass: Olds 455 or LS2 or LS3? Empty Re: Poll: New engine for Cutlass: Olds 455 or LS2 or LS3?

Post by 99B4C Wed Aug 10, 2016 7:51 pm

If its not fuel injected then I dont see one of the biggest advantages, fuel economy. An LS3 with a 4l60e, plastic Caprice fuel tank w/a Vette filter/regulator, painless harness.

Second thought would be leave it alone and keep your license.

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Poll: New engine for Cutlass: Olds 455 or LS2 or LS3? Empty Re: Poll: New engine for Cutlass: Olds 455 or LS2 or LS3?

Post by fasrnur Wed Aug 10, 2016 8:40 pm

Both are good choices Dave. The Olds 455 would be a torque monster for sure. But it would cost a fortune to build it correctly. The LS platform is a great way to make big power for a lower cost indeed. If you go with the F.A.S.T. setup, wouldn't that be injected? You'd have your cake and eat it too right?
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Poll: New engine for Cutlass: Olds 455 or LS2 or LS3? Empty Re: Poll: New engine for Cutlass: Olds 455 or LS2 or LS3?

Post by DaveFury Wed Aug 10, 2016 10:30 pm

Keep 'em comin' guys! I am totally on the fence right now and these are all good points everyone is making. Realistically, I can get about the same power out of anyone of them. Copper, I think the MPG will still be satisfactory w/ a carbed LS platform, probably high teens. With a 400-500 horse 455 Olds, I'll be getting sub 10 MPG. But, what looks cooler:

this? Poll: New engine for Cutlass: Olds 455 or LS2 or LS3? Camp_110

or this? Poll: New engine for Cutlass: Olds 455 or LS2 or LS3? Ls3_ca10

or this?  Poll: New engine for Cutlass: Olds 455 or LS2 or LS3? 455_ol10

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Poll: New engine for Cutlass: Olds 455 or LS2 or LS3? Empty Re: Poll: New engine for Cutlass: Olds 455 or LS2 or LS3?

Post by 99B4C Wed Aug 10, 2016 10:47 pm

fasrnur wrote:Both are good choices Dave. The Olds 455 would be a torque monster for sure. But it would cost a fortune to build it correctly. The LS platform is a great way to make big power for a lower cost indeed. If you go with the F.A.S.T. setup, wouldn't that be injected? You'd have your cake and eat it too right?

I think the computer would just handle the spark, not the fuel.

An ls3 swap will probably cost double a mild 455?

I am a big fan of the BOP 455s, had a 73 98 coupe w/455 and a 74 sj GP 455. Gotta love that torque, but an all aluminum, lighter ls engine improves handling and car is more fun to drive and less fill ups.

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Poll: New engine for Cutlass: Olds 455 or LS2 or LS3? Empty Re: Poll: New engine for Cutlass: Olds 455 or LS2 or LS3?

Post by 99B4C Wed Aug 10, 2016 10:58 pm

My opinion is to take advantage of the technology, computer controls spark,air/fuel ratio making it the more efficient power plant.
Money is the big question, how much would you have into the built 455?

The old school motors look cooler for sure.

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Poll: New engine for Cutlass: Olds 455 or LS2 or LS3? Empty Re: Poll: New engine for Cutlass: Olds 455 or LS2 or LS3?

Post by Limey SE Thu Aug 11, 2016 3:00 pm

Dave this is My Friends Dustin LS set up with remote Coil on fender and Carb ( he is installing turbo ) you dont have to But just showing my Vote LS WITH CARB

Poll: New engine for Cutlass: Olds 455 or LS2 or LS3? 13241310

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Poll: New engine for Cutlass: Olds 455 or LS2 or LS3? Empty Re: Poll: New engine for Cutlass: Olds 455 or LS2 or LS3?

Post by DaveFury Thu Aug 11, 2016 3:17 pm

Limey SE wrote:Dave this is My Friends Dustin LS set up with remote Coil on fender and Carb ( he is installing turbo ) you dont have to But just showing my Vote LS WITH CARB

Poll: New engine for Cutlass: Olds 455 or LS2 or LS3? 13241310

That looks hot. I'd like to do a single or twin turbos if I do an LS.

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Post by fasrnur Thu Aug 11, 2016 7:21 pm

Dave, yet another possibility to be different.

http://www.mondellotwister.com/IntakeFuelSys.htm

https://youtu.be/Y_GcjQgP4tk
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Post by Limey SE Thu Aug 11, 2016 7:40 pm

I would not BUY SQUAT from that Mondello rip off artist Sorry But its NOT the Joe Mondello we all know and love he is passed away and Kids took it over and are running it to the ground

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Post by fasrnur Thu Aug 11, 2016 8:16 pm

I did known about his passing Limey and it sad to hear that the kids are running the company into the ground. Mondello was known for years as THE place to go for Olds performance stuff.
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Poll: New engine for Cutlass: Olds 455 or LS2 or LS3? Empty Re: Poll: New engine for Cutlass: Olds 455 or LS2 or LS3?

Post by Roadcaptain S3 Fri Aug 12, 2016 6:46 pm

Limey SE wrote:Dave this is My Friends Dustin LS set up with remote Coil on fender and Carb ( he is installing turbo ) you dont have to But just showing my Vote LS WITH CARB

Poll: New engine for Cutlass: Olds 455 or LS2 or LS3? 13241310



Poll: New engine for Cutlass: Olds 455 or LS2 or LS3? Latest?cb=20140710124652

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Poll: New engine for Cutlass: Olds 455 or LS2 or LS3? Empty Re: Poll: New engine for Cutlass: Olds 455 or LS2 or LS3?

Post by Limey SE Fri Aug 12, 2016 7:00 pm

HAAAAAA Q*bert Gotta Love it

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Post by DaveFury Fri Aug 12, 2016 10:23 pm

Limey SE wrote:Dave this is My Friends Dustin LS set up with remote Coil on fender and Carb ( he is installing turbo ) you dont have to But just showing my Vote LS WITH CARB

Poll: New engine for Cutlass: Olds 455 or LS2 or LS3? 13241310

Limey,
Is that in a 73-77 A body?

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Post by Limey SE Fri Aug 12, 2016 11:14 pm

Yes sir 75 Laguna

Poll: New engine for Cutlass: Olds 455 or LS2 or LS3? 10689910Poll: New engine for Cutlass: Olds 455 or LS2 or LS3? 55677910

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Post by DaveFury Mon Aug 15, 2016 3:11 pm

Limey SE wrote:Yes sir 75 Laguna

Poll: New engine for Cutlass: Olds 455 or LS2 or LS3? 10689910Poll: New engine for Cutlass: Olds 455 or LS2 or LS3? 55677910

That looks hot! Great stance. Is the LS running yet?

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Post by Limey SE Mon Aug 15, 2016 3:36 pm

Was running before he decided to go turbo and started redoing everything

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