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Post by metalbeast on Sept 2, 2005 10:40:54 GMT -5
Is anyone running either combination? My friend Jason has a 408 LS1 that puts down 532 RWHP. What are the pros and cons of the 402 LS2 vs the 408 LS1?
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Post by jaberwaki on Sept 2, 2005 18:24:02 GMT -5
the ls2 is lighter... the advantages stop there.... An iron 408 is stronger, can suport more boost,rpm,N2O, and the install is more strait foward... I will be running a new 408 next season  |
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Post by metalbeast on Sept 2, 2005 18:53:56 GMT -5
the ls2 is lighter... the advantages stop there.... An iron 408 is stronger, can suport more boost,rpm,N2O, and the install is more strait foward... I will be running a new 408 next season That was the only real advantage that I could see as well. What type of heads are you going with on that setpup? AFR 225s? |
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Post by jaberwaki on Sept 2, 2005 18:56:52 GMT -5
i already have AFR 205's... right now i am not happy with AFR ... so i might just have these ported further
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Post by DocSpeed on Sept 4, 2005 7:02:48 GMT -5
i already have AFR 205's... right now i am not happy with AFR ... so i might just have these ported further Heard from an individual AFR has poor castings an wouldn't be too good of a head choice unless you have the CNCd, then they shine. Just curious if this maybe a true statement. |
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Post by metalbeast on Sept 4, 2005 16:03:37 GMT -5
i already have AFR 205's... right now i am not happy with AFR ... so i might just have these ported further Heard from an individual AFR has poor castings an wouldn't be too good of a head choice unless you have the CNCd, then they shine. Just curious if this maybe a true statement. Most of the people running LS1/LT1 AFRs are putting out awesome numbers without of the box AFR heads (no porting). Maybe that guy just got a bad set of heads. |
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Post by jaberwaki on Sept 4, 2005 17:24:53 GMT -5
i already have AFR 205's... right now i am not happy with AFR ... so i might just have these ported further Heard from an individual AFR has poor castings an wouldn't be too good of a head choice unless you have the CNCd, then they shine. Just curious if this maybe a true statement. there you heard incorrect. my ls1 heads were perfect right out of the box... my problem is with there rules for vendors, not the quality of product... |
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Post by '68SuperchargedLT1Camaro on Sept 4, 2005 17:49:22 GMT -5
jaberwaki wrote
I'm not sure what you mean by that. Are you an AFR dealer or distributor?
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Post by jaberwaki on Sept 4, 2005 18:34:20 GMT -5
no, AFR does not allow ANY vendor to hold sales, or group purchases for any of there products, under threat of no longer being able to sell AFR products...
It does not matter that the GP will not effect THERE profit, only the vendors... they, for what appears to be no reason, will simply not allow them...
the only one there choice effects is the customer....
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Post by DocSpeed on Sept 5, 2005 22:49:57 GMT -5
Heard from an individual AFR has poor castings an wouldn't be too good of a head choice unless you have the CNCd, then they shine. Just curious if this maybe a true statement. Most of the people running LS1/LT1 AFRs are putting out awesome numbers without of the box AFR heads (no porting). Maybe that guy just got a bad set of heads. Thats the same things I have been hearing about AFR being the head god other than this guys opinion. I just met him over this past weekend but he seemed very creditable, big into racing has been since he was very young. Maybe he did get a bad casting that swayed him away. |
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Post by metalbeast on Sept 7, 2005 7:05:16 GMT -5
Most of the people running LS1/LT1 AFRs are putting out awesome numbers without of the box AFR heads (no porting). Maybe that guy just got a bad set of heads. Thats the same things I have been hearing about AFR being the head god other than this guys opinion. I just met him over this past weekend but he seemed very creditable, big into racing has been since he was very young. Maybe he did get a bad casting that swayed him away. Who was this? Was it the guy with the 56 Ford Pickup? |
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Post by jdawgs94z on Sept 9, 2005 1:38:09 GMT -5
what is the difference between afr heads and the lloyd elliot ones  |
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Post by metalbeast on Sept 9, 2005 6:46:45 GMT -5
what is the difference between afr heads and the lloyd elliot ones AFR is a manufacturer of high performance Chevy & Ford heads while Lloyd Elliot just ports existing castings of any brand. Lloyd does not manufacture any heads. When someone says I have a set of Lloyd Elliot LT1 heads, they are just saying that they have some LT1 casting that have been ported and assembled by Lloyd Elliot at Eportworks. You can even send your AFRs to Lloyd Elliot and he will port, flowbench and assemble them (which is what I am doing with my AFR 210s ) Here is his site www.eportworks.com |
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Post by jdawgs94z on Sept 9, 2005 8:53:55 GMT -5
isnt it cheaper to use your stock heads?and what pluses do you get with afr heads as to using your stock ones?
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Post by metalbeast on Sept 9, 2005 9:33:07 GMT -5
isnt it cheaper to use your stock heads?and what pluses do you get with afr heads as to using your stock ones? I would use ported stock castings for nothing bigger than a 355 CI engine on an LT1. The AFR LT4 heads have larger intake and exhaust runners and more material in the casting for porting and can accomodate larger valves (2.0x1.57 inch intake and exhaust valves are as big as you can safely go on LT1 castings whereas you can go 2.08x1.6 on AFR 210s for example). The most peak CFM I have seen with ported stock LT1 castings is around 280 CFM @ 0.6 lift where I have seen over 300 CFM @0.6 lift and better flow across the lift range with fully ported AFR 210s. Now with that I would recommend AFR/Trickflow heads only for larger dispacement stroker applications (383, 396) that can fully utilize the extra flow capabilities of these aftermarket heads. |
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Post by jdawgs94z on Aug 17, 2006 6:52:00 GMT -5
sound like what my friend is having problems with then,thanks for the info
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