355 492 camel hump Lunati 60103 =400hp - Chevelle Tech
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post #1 of 7 (permalink) Old Mar 4th, 11, 3:56 PM Thread Starter
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Al
 
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355 492 camel hump Lunati 60103 =400hp

Hello, can a 10.1 355 492 camel humps and a Lunati 60103 =400hp
I can buy a set all redone for $500.00, would like aluminum but to much $. Motor will be in a 79 Vette 2500 stall, Super Comps. Thanks, Al
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post #2 of 7 (permalink) Old Mar 4th, 11, 4:10 PM
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Sheepster. BAH!
 
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Re: 355 492 camel hump Lunati 60103 =400hp

Unported probably not should still run nicely though.

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post #3 of 7 (permalink) Old Mar 4th, 11, 4:20 PM
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Bobby
 
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Re: 355 492 camel hump Lunati 60103 =400hp

I would say you may even have a hard time getting it to run at 10:1 compression on pump gas without detonation.

To be honest the extra money you spend on decent aluminum heads would be well worth the money for extra power and would be easily capable of running pump gas.

Not saying they can't be ported and reworked to make good power with reduced timing, but it would take a bunch of work.

-Bobby-
1965 SS 331 Muncie
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post #4 of 7 (permalink) Old Mar 4th, 11, 6:01 PM
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Re: 355 492 camel hump Lunati 60103 =400hp

10:1 will run all day on 91 octane

1978 C/10, 496 rect irons, 4L80E, 3500 stall, 4:11's eaton limited slip..
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post #5 of 7 (permalink) Old Mar 4th, 11, 6:14 PM
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George
 
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Re: 355 492 camel hump Lunati 60103 =400hp

I have about the same setup with a smaller cam. Lunati recommended the Streetmaster II cam which is 235 235@.050 .507 lift on a 107 lsa. They said it would give the overlap needed to help with the cylinder pressure.

I hope that will get me close to 400hp.

My '71 Malibu:
3665#
383, 11.7:1, Profiler 213 heads/ BMP Motown intake,

300/304 638/612 111lsa hyd roller, Holley 650 DP,

Pertronix ignition, 1-3/4 to 1-7/8 headers, 3" exhaust

TH350 PTC 10" converter

12 bolt posi, 3.90 gears, MT ET S/S 275/60/15

355 times-12.70@106
125 shot-11.85@112
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post #6 of 7 (permalink) Old Mar 4th, 11, 7:31 PM
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Steve
 
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Re: 355 492 camel hump Lunati 60103 =400hp

Quote:
Originally Posted by adavis View Post
Hello, can a 10.1 355 492 camel humps and a Lunati 60103 =400hp
I can buy a set all redone for $500.00, would like aluminum but to much $. Motor will be in a 79 Vette 2500 stall, Super Comps. Thanks, Al
Yes you can run 10:1 all day on pump gas. I ran close to the same setup in my 64 for years on pump gas with no issues. I dont remember the cam size but it was close but it was a solid cam. My 64 ran 12.90 with the 355, 462 heads, 3500 convertor in a 400 turbo with a 4:10 gear.

64 Chevelle 496
64 F100 Street Rod with BBC /Chevy trapped in a ford body
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post #7 of 7 (permalink) Old Mar 4th, 11, 7:38 PM
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Re: 355 492 camel hump Lunati 60103 =400hp

Personally I think it will both make 400 HP, AND run on pump gas, IF the pistons are flat-tops, and all the supporting pieces - like exhaust and TUNING - are there too.
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