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posted Hide Post
quote:
Originally posted by NortonRacing:
quote:
Originally posted by CURTIS REED:
He has Gen1 blocks and heads so why re-invent the wheel?


You can't touch 500 HP without spending a grand on cylinder heads alone, nevermind all the other things to be apples to apples durability wise. If you have to buy headers, ignition and stuff like that for either engine the LS will smoke an SBC under 550-600 HP.


Read the OP, he has 2 sets of good heads to make the required power to run mid 11's. I'm sure he doesn't give a shyt if an LS will smoke the SBC. It's for his grandson who's probably starting out. Plus, it's a bracket set-up; what does it matter, as long as it meets their original goals.


1980 Camaro
Taking the Best Working Small Tire Shyt Box & making it Greater Than Before!
3000 lbs.
Pump Gas 436
 
Posts: 2776 | Location: NV. | Registered: October 20, 2006Reply With QuoteReport This Post
DRR S/Pro
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A good 355 11.5 520 hyd roller, holley manifold , world SR torquer heads and a 750 ran 11.70 @113 in a 69 Camaro- 3800 stall 3.73 and a turbo 350. I’d be shocked if it made 375. It did weigh 3470 with 6pt moly cage. Drove it to work and school for years.


California Screaming!
Raceless in California!
 
Posts: 4659 | Location: Vacaville  | Registered: January 07, 2004Reply With QuoteReport This Post
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posted Hide Post
quote:
Originally posted by B KING:
quote:
Originally posted by NortonRacing:
quote:
Originally posted by CURTIS REED:
He has Gen1 blocks and heads so why re-invent the wheel?


You can't touch 500 HP without spending a grand on cylinder heads alone, nevermind all the other things to be apples to apples durability wise. If you have to buy headers, ignition and stuff like that for either engine the LS will smoke an SBC under 550-600 HP.


Read the OP, he has 2 sets of good heads to make the required power to run mid 11's. I'm sure he doesn't give a shyt if an LS will smoke the SBC. It's for his grandson who's probably starting out. Plus, it's a bracket set-up; what does it matter, as long as it meets their original goals.


If you read the rest of my post you will see that despite having those parts he will spend more on a crank, rods, pistons, cam machine work etc to put it together than a 6.0 costs to buy in a ready condition. Bottomline he will be better off price and reliability wise going to an LS now, with all of the benefits of that right off the bat.

So I don't give a shot what parts he has in that regard, unless he has a complete 350 already rebuilt its probably going to be cheaper to get a $1000 6.0 and put $500 into, make more power cheaper and be more reliable than a stock type 350 making 500HP.
 
Posts: 89 | Location: Inverness, Fl | Registered: November 14, 2021Reply With QuoteReport This Post
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I'm sorry I came off a little harsh, hope you accept my apology!

When speaking of doing something with a grandson, I'm sure it's more of building a motor together. While buying a 6.0 LS is a great cheap foundation, the grandson is missing out on the total experience. That's just me looking from the outside in.


1980 Camaro
Taking the Best Working Small Tire Shyt Box & making it Greater Than Before!
3000 lbs.
Pump Gas 436
 
Posts: 2776 | Location: NV. | Registered: October 20, 2006Reply With QuoteReport This Post
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Picture of wideopen231
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My question iswhere are you getting 6.0 for grans. We use to be bale to find those now days all we find is 2k plus with 120k miles.

No matter what he uses I hope OP is making the kid do almost all the work and learn what makes it work at the track. I have had two kids want to build first race car that started out full bore and then after finding out there is real work involved say nope I can just buy a car and race it lot easier. I didn't mind helping them learn to build a car, but I wouldn't do the work and let them just jump in and go racing.




America home of free. Brought to you by 2nd amendment.
 
Posts: 4527 | Location: Greensboro NC | Registered: May 24, 2011Reply With QuoteReport This Post
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Picture of NC3x58
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quote:
Originally posted by wideopen231:
My question iswhere are you getting 6.0 for grans. We use to be bale to find those now days all we find is 2k plus with 120k miles.

No matter what he uses I hope OP is making the kid do almost all the work and learn what makes it work at the track. I have had two kids want to build first race car that started out full bore and then after finding out there is real work involved say nope I can just buy a car and race it lot easier. I didn't mind helping them learn to build a car, but I wouldn't do the work and let them just jump in and go racing.


I was honestly wondering the same thing.. IF you have a reliable supplier with ready to run 6.0LS motors, please share so I can go buy like 5!


Nick Craig

1971 Camaro Split Bumper
376ci LS3
 
Posts: 410 | Location: Ohio | Registered: December 28, 2013Reply With QuoteReport This Post
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Picture of SlyFox
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quote:
Originally posted by Curly1:
Sounds like this is his Grandson's first race car and he wants to go mid 11's.


Yeah, I think everybody else missed that. Mid-11's in the 1/4 is mid-7's in the 1/8. We got folks talking about low to mid-6's here...


Mike
 
Posts: 1600 | Location: Marietta, GA | Registered: December 09, 2005Reply With QuoteReport This Post



DRR Pro
Picture of SlyFox
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As far as LS motors and how "cheap" they are, nobody ever speaks to the new oil pan, new brackets, new mounts, new intake, carb & ignition you need if you're not running the factory computer, etc, etc. Putting an LS into an older chassis will nickel-and-dime you to death, like any engine swap.

If you want to play with LS motors on the cheap buy a 98-02 F-body that comes with an LS already. JMHO


Mike
 
Posts: 1600 | Location: Marietta, GA | Registered: December 09, 2005Reply With QuoteReport This Post
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posted Hide Post
quote:
Originally posted by NC3x58:
quote:
Originally posted by wideopen231:
My question iswhere are you getting 6.0 for grans. We use to be bale to find those now days all we find is 2k plus with 120k miles.

No matter what he uses I hope OP is making the kid do almost all the work and learn what makes it work at the track. I have had two kids want to build first race car that started out full bore and then after finding out there is real work involved say nope I can just buy a car and race it lot easier. I didn't mind helping them learn to build a car, but I wouldn't do the work and let them just jump in and go racing.


I was honestly wondering the same thing.. IF you have a reliable supplier with ready to run 6.0LS motors, please share so I can go buy like 5!


Agreed on a 6.0 LS pricing. A friend just bought a 6.0LS2 with 4L80E attached that has 130k miles out of a Trailblazer SS for $4500 and the trans needed a rebuild. He put it in a 2003 Chevrolet Colorado.
 
Posts: 2678 | Location: 53056 | Registered: December 30, 2009Reply With QuoteReport This Post
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Picture of the rain maker
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quote:
Originally posted by chevelleman:
Guys I need recommendations. My Grandson has been given a 71 camaro. It's ready for the track except it needs a motor. I need to build him something that will run mid 11's and stay together with normal maintenance. Anyone have a good combination they are willing to share? I prefer a SBC since I already have several blocks both 350 and 400. Plus several sets of heads such as brodix track 1 and profiler. thanks for your help.


Your goals should be easy to obtain. I have been 7 teens @3000lbs with a completely stock, all factory cast, flat top 350 short block with camel hump heads that were “pocket ported”. The camshaft was a solid lift “105” dirt track cam, the intake was an Edelbrock Scorpion, and a 750 carb. That was with a powerglide transmission, 8” converter, and 3.73 rear gears. If I remember correctly a 2” spacer under the carb was worth almost 2 tenths in ET. Clearly everything I listed about the engine is junk but I ran it for 6-7 years shifting @6200 before swapping it out for a 383. You did not mention a budget for the build but my advice is spend extra money on parts such as pistons & rods and camshaft. You already have some profiler heads so I would use them on a 350. I agree with the others who said stay away from the factory 400 block. Good luck


David Hammons
2014 IHRA Electronics Champion Gulfport Dragway
2016, 2018 IHRA Footbrake Champion Gulfport Dragway
2018, 2019 1000' Footbrake Champion Gulfport Dragway
 
Posts: 73 | Location: gulfport ms | Registered: December 19, 2009Reply With QuoteReport This Post
DRR Sportsman
Picture of Dave Koehler
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OP,
You may already adhere to the following.

Regardless of the Cubic inch/combo you choose align yourself with a good machine shop that can line bore and/or hone the mains, square up the block decks side to side and end to end and can hone cylinders with a torque plate. Balance the rotating assembly.

Will this make it run quicker? Probably but the important thing is that it will add significant life to the engine.
Straight lines and round holes are the keystone of any good engine.


Dave Koehler - Koehler Injection - http://www.koehlerinjection.com
Fuel Injection - Nitrous Charger - Nitrous Master Software - Balancing
99% of fuel injection problems are electric.
 
Posts: 364 | Location: Urbana, IL 61802 | Registered: December 03, 2003Reply With QuoteReport This Post
DRR S/Pro
Picture of Lenny5160
posted Hide Post
quote:
Originally posted by SlyFox:
quote:
Originally posted by Curly1:
Sounds like this is his Grandson's first race car and he wants to go mid 11's.


Yeah, I think everybody else missed that. Mid-11's in the 1/4 is mid-7's in the 1/8. We got folks talking about low to mid-6's here...


The OP has never responded at all, or given the weight of this vehicle so who the hell can know what it will take to put it at any given ET?


Tony Leonard
 
Posts: 3249 | Location: Inver Grove Heights, MN | Registered: March 18, 2004Reply With QuoteReport This Post
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Picture of SlyFox
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My 69 Chevelle, 3950# with me on board, went 11.50's in the 1/4 and 7.50's in the 1/8 in crappy mid-summer Georgia air, with a 10:1 496 that ran on 93 unleaded, a 3.42 gear and 2800 stall/TH400. 100% street legal. Bests were 11.37 @ 117 in the 1/4 and 7.19 @ 95 in the 1/8. RPM did not exceed 5500.

If the OP is significantly lighter, uses more gear and converter, and can rev to 6000+, I see no issues going mid-11's with the parts he already has on hand, even at only 355ci. He might even do it on unleaded pump gas.


Mike
 
Posts: 1600 | Location: Marietta, GA | Registered: December 09, 2005Reply With QuoteReport This Post
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