Whats new in the LS1 world you ask? Look in here
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Originally posted by Enthalpy
One thing i never liked about LS1/6 heads is the port design. A tall skinny port liekt hat leads to excessive restriction for a given port area. there is way more surface area than on a more round or square port.
One thing i never liked about LS1/6 heads is the port design. A tall skinny port liekt hat leads to excessive restriction for a given port area. there is way more surface area than on a more round or square port.
those ports LOOK like they could be improved upon immensly over stock.
tall skinny ports, i guess they were shooting for max velocity (better fuel efficiency, less power) but thats the way its gotta be in these shitty days of mega-pollution standards
are the aftermarket heads more of a rounded/square style port?
(i know they squared yours up al, but off the shelf aftermarket heads? is that how there getting bigger numbers?{more rounded ports})
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Yes...stock heads flow awesome. They look a lil funny but there has never been a better designed pushrod head ever. Consider the new C6 is still using the same LS6 heads...is making 400+ hp from the factory..the engine is now lighter...and more cubic inches..BUT GETS NEARLY 30MPG 
Marko...there are currently no aftermarket LS1 heads available. AFR has some coming soon...but they copied GMs port design closely. The reason there are no companies doing them because it would be a major engineering undertaking to improve upon the stock LS6 head as it is.
A stock LS6 casting that is ported and gone through by some one like TEA will flow more that 95% of all aftermarket "race" heads out there. And they do this while maintaining better drivability and fuel economy. They are a VERY efficient head. TEA has some LS6 heads here that will flow 320 cfm at .500 lift...and continue flowing till the .650 lift range up to 345-348 cfm range.
In comparison....Limeys awesome ZR1 with the 415 ci LT5 32 valve whoopass motor makes roughly 600 rwhp. Which is incredible.
Futral Motorsports just did a 434 ci LS1 motor that made 604 rwhp. Granted it has 19 more cubes and is solid roller...but that 604 rwhp came at A MEASLY 6300 rpm. Thats insane TQ!
With the right intake (which is the LS1 achiles heal right now) that motor could easily go 640 rwhp or more. ALL MOTOR!!!
Bottom line...LS1 heads look funny...but they are cutting edge...and doing it with a basic reliable pushrod design that is cheap,reliable and very plentiful.
Marko...there are currently no aftermarket LS1 heads available. AFR has some coming soon...but they copied GMs port design closely. The reason there are no companies doing them because it would be a major engineering undertaking to improve upon the stock LS6 head as it is.
A stock LS6 casting that is ported and gone through by some one like TEA will flow more that 95% of all aftermarket "race" heads out there. And they do this while maintaining better drivability and fuel economy. They are a VERY efficient head. TEA has some LS6 heads here that will flow 320 cfm at .500 lift...and continue flowing till the .650 lift range up to 345-348 cfm range.
In comparison....Limeys awesome ZR1 with the 415 ci LT5 32 valve whoopass motor makes roughly 600 rwhp. Which is incredible.
Futral Motorsports just did a 434 ci LS1 motor that made 604 rwhp. Granted it has 19 more cubes and is solid roller...but that 604 rwhp came at A MEASLY 6300 rpm. Thats insane TQ!
With the right intake (which is the LS1 achiles heal right now) that motor could easily go 640 rwhp or more. ALL MOTOR!!!
Bottom line...LS1 heads look funny...but they are cutting edge...and doing it with a basic reliable pushrod design that is cheap,reliable and very plentiful.
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if it's cheap & reliable, it ain't fast, if it's fast & cheap, it ain't reliable, if it's fast & reliable, it ain't cheap
Last edited by HybridSS; 05-25-2004 at 08:05 AM.
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+1, just seems like the port could be improved upon, but if i'll take anyones word on ls1's, it's yours al
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Oh...your right Marko...the port can be improved on.....what do you think Im doing here in Bowling Green, Ky
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Originally posted by HybridSS
Oh...your right Marko...what do you think Im doing here in Bowling Green, Ky
Oh...your right Marko...what do you think Im doing here in Bowling Green, Ky
trying to be faster than me
j/k, but we will have some truly good races when we get em' together
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Originally posted by HybridSS
The reason there are no companies doing them because it would be a major engineering undertaking to improve upon the stock LS6 head as it is.
The reason there are no companies doing them because it would be a major engineering undertaking to improve upon the stock LS6 head as it is.
I would think it would be due to the GM pony cars are no longer being produced and the aftermarket for Vettes is narrow at best.
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Nah...LS1/6 heads will be on every GM car and truck V8 for the next 5 years. The LS2 has ensured that. Corvette, GTO, Escalade, Silverado V8, Cadillac, SSR, and yes...even the new camaro that will be coming out again. Not to mention evey street rod is putting the LS1 in the engine bay.
The LS1 aftermarket will be strong for years to come...probably even better than the 5.0 has done.
The LS1 aftermarket will be strong for years to come...probably even better than the 5.0 has done.
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+1
chevy kicks ass
chevy kicks ass
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originally posted by everyone on tr:
"I hate Goopster with all my internet hating capabilities...thats why I use his email to sign him up for child porn"
TR stranded on an island with plenty of nugs crew #001
TR's happily, finally married crew #003 (and not to a stripper this time
)TR's nugs crew leader #001
originally posted by everyone on tr:
"I hate Goopster with all my internet hating capabilities...thats why I use his email to sign him up for child porn"
