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#41
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Folks in the fall of 1954 (yes, 1954, 55 Chevy's came out in fall of 1954) were poking around salvage yards looking for these "new" Chevrolet engines, in wrecked cars. Having heard the performance potential, and they were not disappointed. Same thing going on now. Nobody is putting any of the ford stuff or a hemi in their Hot Rods, yes one, here and there, but very few...
Think about how powerful a 455 inch LS engine would be...... Making a good running early small block Chevy was not difficult. Making a good running LS is easier, but all the gyrations you have to go through to convert an older vehicle, in not cheap!!! I'll stick with the old stuff, no hate for the LS world here.
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1977 Black Trans Am 180 HP Auto, essentially base model T/A. I'm the original owner, purchased May 7, 1977. Shut it off Shut it off Buddy, I just shut your Prius down... |
#42
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I also had good luck with a street avenger I bought new. I will say that Holley has fantastic customer service and on another quick fuel I had they rebuilt it completely at no cost to me. If i needed a new carb (and I definitely don’t), I would feel great about going with a Holley or Quick Fuel again but I’d stay away from the cheaper stuff. That black diamond SS 850 might be my single favorite car part ever. I can’t get over how great it runs and how well the finish has held up. |
#43
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people that like LS swaps in old cars are like people that eat blue cheese. i don’t understand it, i definitely don’t trust them, but i can’t honestly say there’s anything wrong with it?
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#44
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466 Mike Voycey shortblock, 310cfm SD KRE heads, SD "OF 2.0 cam", torker 2 373 gears 3200 Continental Convertor best et 10.679/127.5/1.533 60ft 308 gears best et 10.76/125.64/1.5471 |
#45
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Greta Thunderburger loves the LS for its 'efficient' planet saving Active Fuel Management that conserves fuel by turning the V8 into a V4. It is really a shame how the system will eventually go bad and cause the engine to burn a quart of oil per 1,000 miles, blowing blue smoke all over the cars behind you. Make sure when you swap the LS in your Pontiac that you properly re-install this amazing technology.
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#46
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#47
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#48
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That build even 20 years ago wasn't cheap. Heads alone were $3000 back then. |
#49
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I would say up to a point the real difference is money spent to get it done. I see no reason I couldnt build a 400 pontiac with mild compression KRE or Edelbrock D ports, EFI and make comparable go to a Mild LS engine. Up to 550-600 go the block is solid. The advantage the LS has is the design of the block.
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#50
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10s not only running in October mineshaft air. lol I think some run 20 plus cubes less than you. 427 / 433 ish. |
#51
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Up to 550-600 << NOT good enough! |
#52
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Cool, and they should with what is out there for parts. I'm open for the challenge..
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466 Mike Voycey shortblock, 310cfm SD KRE heads, SD "OF 2.0 cam", torker 2 373 gears 3200 Continental Convertor best et 10.679/127.5/1.533 60ft 308 gears best et 10.76/125.64/1.5471 |
#53
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As far as carbs vs EFI, Both of our dailys have carbs if that tells you anything.
As far as carbs go I either like original OEM holleys or a Qjet. Either are easy to tune. I like aftermarket Holleys, and I'm talking if you get into the good ones that cost nearly $1000. Usually if I need something like that I build my own starting with a good main body and go from there. My only complaint is the drastic elevation changes we deal with in Arizona. I can watch the AFR change more than a full point and up to a point and a half in either direction within 20-30 miles of the house. Makes it a challenge to dial in a carb to work in all conditions and try to keep the engine safe at the same time. For giggles dad and I decided to try Holley EFI on a couple of the cars that aren't driven too regularly. We do take them down to near sea level for racing but spend most of their time driving up above 5000 feet. You almost just need 2 carburators for that and swap the other on at the track. For that reason we tried a couple of Snipers on both cars. Their ability to adjust on the fly was a game changer and just so much easier to deal with. Last weekend we drove them both to Phoenix and I loaded a different tune in to log when near sea level just to see the changes and compare. Gotta say it was nice to tweak on it and never had to open the hood. My 600hp 454 got 16.8 mpg with the new 4L80E behind it. I'm not complaining. I still like carbs though. |
#54
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My two cents - you get a guy that wants to plow his driveway with his GTO or Firebird, consider recommending a manual choke |
#55
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You haven't seen an N/A LS run deep 10s.. ?? |
#56
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Sure, buddy. This tech has been in GM trucks since 2014 - don't see many if any smoking. |
#57
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Nothing mid to low 10's..most LS builds I see are turn key cruisers with a few faster builds..most aren't dialed in with the suspension..The faster guys are the turbo guys. To me that's the appeal of the LS platform..having cheap shortblocks available for that just in case.
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466 Mike Voycey shortblock, 310cfm SD KRE heads, SD "OF 2.0 cam", torker 2 373 gears 3200 Continental Convertor best et 10.679/127.5/1.533 60ft 308 gears best et 10.76/125.64/1.5471 |
#58
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#59
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Greta anyways is doing a LS swap into a Tesla...so much for saving the planet..
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466 Mike Voycey shortblock, 310cfm SD KRE heads, SD "OF 2.0 cam", torker 2 373 gears 3200 Continental Convertor best et 10.679/127.5/1.533 60ft 308 gears best et 10.76/125.64/1.5471 |
#60
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there may have been a smidge of sarcasm in that post ...
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Closed Thread |
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