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8.1 in a RCSB??

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Old 09-28-2007, 02:44 PM
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I think it would be great. I have driven the 6.0 trucks and my 8.1 is much more fun to drive. With a marine cam and injectors, headers, and a good tune, that thing would be insane. There is no replacement for displacement. Do the same mods to both and the 8.1 will crush the 6.0
Old 09-29-2007, 10:37 PM
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Originally Posted by adam1803
Definetly not worth the cost. The 8.1 is a dog and has virtually no aftermarket support. A bolt on 6.0 will beat the snot out of it any day of the week.
LOL, Yea ok! When you get a clue, let me know.
But I must agree. Theres not much support for 8.1l.
Old 09-29-2007, 11:36 PM
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Originally Posted by TieRod
LOL, Yea ok! When you get a clue, let me know.
But I must agree. Theres not much support for 8.1l.
Ok so maybe it would take a small cam too. The relatively small amount of power the 8.1 puts out is rediculous considering its size. In terms of effeciency it is a huge POS.
Old 09-30-2007, 04:14 AM
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any guesses on why they're so popular in marine application?
Old 09-30-2007, 06:12 AM
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Originally Posted by 99Silverado5.3
I've seen one on the tv show trucks a WHILE back, pretty sweet, but they couldn't get any traction because the engine is so heavy. Made pretty decent power, but you can't compare it to a well set up 6L.

6L>8.1L
Yeah, I saw that episode too! It was a pretty sweet truck: HD Cab w/ short box on a 1500 RCSB frame, air ride suspension, 20" chrome torque thrust wheels and real wood slats in the bed...

But that is the only instance I've ever heard of an 8.1L used in a RCSB application...
Old 09-30-2007, 08:33 AM
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Originally Posted by OneBadSSS
Yeah, I saw that episode too! It was a pretty sweet truck: HD Cab w/ short box on a 1500 RCSB frame, air ride suspension, 20" chrome torque thrust wheels and real wood slats in the bed...

But that is the only instance I've ever heard of an 8.1L used in a RCSB application...
can you tell me what the difference in a HD cab is?

heres the article of that truck, thats where i got the idea for my truck
http://sporttruck.com/featuredvehicl...uck/index.html
Old 09-30-2007, 08:36 AM
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Originally Posted by 2006 8.1
I think it would be great. I have driven the 6.0 trucks and my 8.1 is much more fun to drive. With a marine cam and injectors, headers, and a good tune, that thing would be insane. There is no replacement for displacement. Do the same mods to both and the 8.1 will crush the 6.0
hahahahahahahahahahahahahahaha, now thats a funny as statement. you would have to slap a carb/intake on there since the intake isnt the best setup for performance. as stated not much of a market for it.

your statement is correct for no replacment for displacment, but if there isnt a market then it wont make that statement true. GM isnt going to put much money and time into a motor that is 496 CI when you have a 502CI avaible

big blocks are boat anchors. yes the torque is nice for sure and are great for towing. reaosn the 8.1 for you is alot more fun is the weight of vehicle its in. the 6.0 is a dog in a heavy truck.
Old 09-30-2007, 09:05 AM
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there no difference in the cab, its just the frame is taller to except the bigger motors, so he probably had a rclb hd and a short bed, and backhalfed the frame and slapped a short bed on there.
Old 09-30-2007, 09:30 AM
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Originally Posted by ricoc
any guesses on why they're so popular in marine application?
Low end torque.
Old 09-30-2007, 09:32 AM
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Originally Posted by GMracer
there no difference in the cab, its just the frame is taller to except the bigger motors, so he probably had a rclb hd and a short bed, and backhalfed the frame and slapped a short bed on there.
i was being sarcastic


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