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-   General Boating Discussion (https://www.offshoreonly.com/forums/general-boating-discussion-51/)
-   -   Custom Engine Builders (https://www.offshoreonly.com/forums/general-boating-discussion/291525-custom-engine-builders.html)

skaterdave 02-13-2013 08:22 PM
Originally Posted by Bromaguire (Post 3866799)
The future should be in GM LSX motors. I have an engine in my Denali making over 750hp at 9psi on a custom built 434 cui LSX block with a Kenne Bell 3.6 Supercharger for less than $25k built by a Nascar engine builder that has provided Dale Earnhart Jr. motors for some of his championship years. Why do marine motors need to cost so much more?
one word = MARINE

Back4More 02-13-2013 08:24 PM
Your motor would melt in boat.

Orionsilverboat 02-13-2013 08:28 PM
Originally Posted by Bromaguire (Post 3866799)
The future should be in GM LSX motors. I have an engine in my Denali making over 750hp at 9psi on a custom built 434 cui LSX block with a Kenne Bell 3.6 Supercharger for less than $25k built by a Nascar engine builder that has provided Dale Earnhart Jr. motors for some of his championship years. Why do marine motors need to cost so much more?
This motor would melt down after 15 minutes at wot in a boat

Bromaguire 02-13-2013 08:29 PM
Originally Posted by skaterdave (Post 3866815)
one word = MARINE


Originally Posted by Back4More (Post 3866820)
Your motor would melt in boat.
LOL you don't even know the specs of the build... Theres nothing magical about marine motors.

dandercam1 02-13-2013 08:33 PM
A supercharged LS based motor could work, and it would look just like this

http://lightningperformancegroup.com...ngine-675.html

saleen385 02-13-2013 08:38 PM
Originally Posted by Bromaguire (Post 3866799)
The future should be in GM LSX motors. I have an engine in my Denali making over 750hp at 9psi on a custom built 434 cui LSX block with a Kenne Bell 3.6 Supercharger for less than $25k built by a Nascar engine builder that has provided Dale Earnhart Jr. motors for some of his championship years. Why do marine motors need to cost so much more?
Originally Posted by skaterdave (Post 3866815)
one word = MARINE
Originally Posted by Back4More (Post 3866820)
Your motor would melt in boat.
I agree, I don't think they cost more it's they are sold complete with all the front pulleys, seapump, bell housing, etc.
I priced out a 572 BBC, (just got prices of the net), capable of making anywhere from 1000hp to 1200hp cost of parts was between $30k-$40k.
I'm guessing that your guy built that on the side but I could be wrong about that.

Jim

Orionsilverboat 02-13-2013 08:39 PM
Originally Posted by Bromaguire (Post 3866825)
LOL you don't even know the specs of the build... Theres nothing magical about marine motors.
Thats where ur wrong,mu must not have experiencecwith big hp marine power, it is an art to make them hold together .

Bromaguire 02-13-2013 08:43 PM
Originally Posted by saleen385 (Post 3866836)
I agree, I don't think they cost more it's they are sold complete with all the front pulleys, seapump, bell housing, etc.
I priced out a 572 BBC, (just got prices of the net), capable of making anywhere from 1000hp to 1200hp cost of parts was between $30k-$40k.
I'm guessing that your guy built that on the side but I could be wrong about that.

Jim
My setup wasn't built on the side. It also came with a ten rib setup for the belts. Obviously no sea pump though. Transmission was already built and installed so the bell housing was already there. I'm not saying the cost would be the exact same but it shouldn't cost double...

Bromaguire 02-13-2013 08:45 PM
Originally Posted by Orionsilverboat (Post 3866838)
Thats where ur wrong,mu must not have experiencecwith big hp marine power, it is an art to make them hold together .
I guess your right nascar series winning engine builders don't know how to keep a motor together for long exposed periods of WOT. :lolhit:

Orionsilverboat 02-13-2013 08:50 PM
Originally Posted by Bromaguire (Post 3866846)
I guess your right nascar series winning engine builders don't know how to keep a motor together for long exposed periods of WOT. :lolhit:
Their not making 1300-1600hp out of a nascar motor, and its not in marine environment, getting beat to death. Nascar and marine power are totally different animals trust me


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