New aluminum pushrod V10 coming from GM
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Joined: Jun 2002
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Re: New aluminum pushrod V10 coming from GM
Originally Posted by R377
Why is this? When GM switched from the SBC to the LSx, they went from 5 bolts down to 4. This gave them much more freedom in the cylinder head design to optimize flow. Especially on an OHV engine, I think it would be a step backwards to go back to 5 bolts.
Like when using nitrous...
Nobody ever said it made terrific financial sense, just that I'd like to see them design a modern large displacement motor that way.
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Joined: Dec 2003
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From: Charleston, SC
Re: New aluminum pushrod V10 coming from GM
Originally Posted by R377
Why is this? When GM switched from the SBC to the LSx, they went from 5 bolts down to 4. This gave them much more freedom in the cylinder head design to optimize flow. Especially on an OHV engine, I think it would be a step backwards to go back to 5 bolts.
its hard to get insane power levels to seal reliably over time with the LS1. with the SBC, you could run a 9 second motor all season without headgasket issue.
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Re: New aluminum pushrod V10 coming from GM
Originally Posted by MrDude_1
reason is simple.
its hard to get insane power levels to seal reliably over time with the LS1. with the SBC, you could run a 9 second motor all season without headgasket issue.
its hard to get insane power levels to seal reliably over time with the LS1. with the SBC, you could run a 9 second motor all season without headgasket issue.
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Joined: Nov 2000
Posts: 2,712
From: Ontario
Re: New aluminum pushrod V10 coming from GM
Originally Posted by MrDude_1
reason is simple.
its hard to get insane power levels to seal reliably over time with the LS1. with the SBC, you could run a 9 second motor all season without headgasket issue.
its hard to get insane power levels to seal reliably over time with the LS1. with the SBC, you could run a 9 second motor all season without headgasket issue.
Besides, GM needs to design the best engine it can for the street. It doesn't make sense to make compromises to how well an engine will perform on the street, just for the sake of making it more bulletproof for the .0001% of people who want to make 800hp.
i think i can shoe horn a v10 in the z. 
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Joined: Jul 2002
Posts: 2,472
From: South Bend, Indiana
Re: New aluminum pushrod V10 coming from GM
Originally Posted by Big Als Z
This is gunna be GM's heavy duty engine, probably replacing the 8.1 in HD in trucks. GMT900 is being made for the V10
Looks like this is gunna be a truck-only engine, but ya never know. But what else would this be put in?
Big Caddy? With Caddy trying to move up market, why put a OHV "outdated" pushrod engine in there car...but they did it with the Sixteen...
Maybe a big Buick?! That would be awesome.
Looks like this is gunna be a truck-only engine, but ya never know. But what else would this be put in?
Big Caddy? With Caddy trying to move up market, why put a OHV "outdated" pushrod engine in there car...but they did it with the Sixteen...
Maybe a big Buick?! That would be awesome.
Thread Starter
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Joined: Jan 2000
Posts: 10,285
From: Albany, NY
Re: New aluminum pushrod V10 coming from GM
Originally Posted by Meccadeth
I think you are thinking about that a bit much. Most, probably 90% of consumers aren't going to know the difference between pushrod and DOHC and all that, all they know is its a V10, which is extremely rare and powerful. They put a pushrod in a pretty expensive CTS and look how thats doing...nobody cares if its "just a pushrod."
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Re: New aluminum pushrod V10 coming from GM
Originally Posted by Z28x
Funny how the Hemi is a pushrod and not one Import biased auto mag bashes it. It is also selling like hotcakes.
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Joined: Jun 2000
Posts: 2,801
From: South Bend , IN
Re: New aluminum pushrod V10 coming from GM
Originally Posted by R377
Doesn't seem to be an issue with Ford's 4.9L V8.
Besides, GM needs to design the best engine it can for the street. It doesn't make sense to make compromises to how well an engine will perform on the street, just for the sake of making it more bulletproof for the .0001% of people who want to make 800hp.
Besides, GM needs to design the best engine it can for the street. It doesn't make sense to make compromises to how well an engine will perform on the street, just for the sake of making it more bulletproof for the .0001% of people who want to make 800hp.
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Joined: May 2001
Posts: 858
From: Ft. Lauderdale, FL
Re: New aluminum pushrod V10 coming from GM
Originally Posted by PacerX
Funny how the Hemi ain't a Hemi and looks like a Rat with LSx runners.
They ARE rat heads with Gen III/IV SB runners...
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Joined: Mar 2004
Posts: 4,306
From: Jersey Shore
Re: New aluminum pushrod V10 coming from GM
Originally Posted by MissedShift
You ever seen GM 8.1L heads?
They ARE rat heads with Gen III/IV SB runners...
They ARE rat heads with Gen III/IV SB runners...
