More 8100 Info Please.
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Staging Lane
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From: Columbia, Missouri
More 8100 Info Please. Okay, in regards to the 8.1L 8100 496, what are some of my accessory options like bracket configurations and oil pan?
This motor will be installed in a '74 Vette so the steering and suspension is a concern.
Will any of the other big block oil pans fit? I know some pans from the ZZ502 and ZZ572 fit in the C3 Corvette and I have seen several of the Mark V and Mark VI 7.4L 7400 454 in C3s as well. That would lead me to believe that some of the Vortec big block oil pans work in C3s and I just need to know which if not all would fit on an 8100.
I'm also wondering about brackets. Minimalistic is best. No A/C, and no smog. Just alternator, power steering, water, tension, and idle will be needed. The upper A-arms cause the most problems. I good reference is that a serpentine bracket kit from a '92 Camaro will fit just fine so long as the smog delete pulley and bracket are turned backwards. Not having anything there would be a plus.
Info is great guys and you all seem to have a lot of it.
This motor will be installed in a '74 Vette so the steering and suspension is a concern.
Will any of the other big block oil pans fit? I know some pans from the ZZ502 and ZZ572 fit in the C3 Corvette and I have seen several of the Mark V and Mark VI 7.4L 7400 454 in C3s as well. That would lead me to believe that some of the Vortec big block oil pans work in C3s and I just need to know which if not all would fit on an 8100.
I'm also wondering about brackets. Minimalistic is best. No A/C, and no smog. Just alternator, power steering, water, tension, and idle will be needed. The upper A-arms cause the most problems. I good reference is that a serpentine bracket kit from a '92 Camaro will fit just fine so long as the smog delete pulley and bracket are turned backwards. Not having anything there would be a plus.
Info is great guys and you all seem to have a lot of it.
I would say most of you normal Vette BBC accessories should work. As the 8.1 is just a new block and longer stroke over a older BBC 454 Mark V. Heads might be of a different design but should be able to swap most everything.
reviesion of the design, one item was that in the Mark V they removed the Fuel pump housing, on the Mark VI, the put it back in. but search the internet for more information and history..
Last edited by bczee; Jul 16, 2007 at 02:41 PM.
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Staging Lane
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Originally Posted by Schitzo
I emailed their tech department so thanks fior the suggestion.
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Staging Lane
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Originally Posted by bczee
reviesion of the design, one item was that in the Mark V they removed the Fuel pump housing, on the Mark VI, the put it back in. but search the internet for more information and history..
Believe it or not there does not seem to be that much that's easily found without going through obscure sites that seem to have no connection to the project at hand.
Trending Topics
Not sure how obscure these are:
http://en.wikipedia.org/wiki/Chevrolet_Big-Block_engine
http://en.wikipedia.org/wiki/GM_Vortec_engine#8100
--JMarsa
http://en.wikipedia.org/wiki/Chevrolet_Big-Block_engine
http://en.wikipedia.org/wiki/GM_Vortec_engine#8100
--JMarsa
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Staging Lane
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From: Columbia, Missouri
Originally Posted by jmarsa
Not sure how obscure these are:
http://en.wikipedia.org/wiki/Chevrolet_Big-Block_engine
http://en.wikipedia.org/wiki/GM_Vortec_engine#8100
--JMarsa
http://en.wikipedia.org/wiki/Chevrolet_Big-Block_engine
http://en.wikipedia.org/wiki/GM_Vortec_engine#8100
--JMarsa
Yeah those were some of the first places I looked when I got going on this project. I appreciate the help.
Registered User
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From: Liberty MO
From what I understand the aluminum 8.1L has little to nothing to do with the previous big block engines. It is basicly a big block version of the LS1. It has a different cam crank all internals and I wouldn't be surprised if the exterior bolts for the accessories etc. are different as well. There is one or two companes that make cams a port heads for them but they are expensive. I think the lack of aftermarket support is why nobody seems to use these engines for swaps.
TECH Fanatic
Joined: Jul 2005
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From: Beebe, Arkansas
The 8.1L (RPO L18) is new or Redisigned generation of the BBC, It has been redesigned to use new and simular technology as/from the LSx family of engines (ie. Coil on plug, EFI/Intake, on piece rear seal, Roller Cam, etc). but for the most part, it is still a Tall deck BBC, same bore center but stroked to bring it out to 496cid.
Heads are still the canted (porcupine valves arrangement) but redesigned.
Heads are still the canted (porcupine valves arrangement) but redesigned.
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Forgive me for asking, but I'm curious. why hunt around for stuff to make an 8.1 go, when you can get an "out of the box" 8.2 that's already a proven thing and has loads of parts already on the market? The 8.1 is 496 cubic inches, and the 8.2 is a 502. The 502 is a standard 9.8 deck block, meaning it'll fit lots of places the 8.1 will not without major surgery. If it's cubic inches, then there's always the 572.
Not trying to rain on the parade at all, just curious.
Not trying to rain on the parade at all, just curious.
Thread Starter
Staging Lane
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From: Columbia, Missouri
Forgive me for asking, but I'm curious. why hunt around for stuff to make an 8.1 go, when you can get an "out of the box" 8.2 that's already a proven thing and has loads of parts already on the market? The 8.1 is 496 cubic inches, and the 8.2 is a 502. The 502 is a standard 9.8 deck block, meaning it'll fit lots of places the 8.1 will not without major surgery. If it's cubic inches, then there's always the 572.
Not trying to rain on the parade at all, just curious.
Not trying to rain on the parade at all, just curious.
Easy. I found a complete take out 8100 for almost nothing compared to what a 502 would cost.
It was a budget build project. Turned out the budget called for cuts, and a Vortec 350 was chosen for the build.