New AFR 245 npp heads, WOW!
#1
New AFR 245 npp heads, WOW!
Have any of you guys seen the info on these 23* heads, they have "no pushrod pinch" (npp) WOW.
http://www.airflowresearch.com/245NPPRelease.php
http://www.airflowresearch.com/245NPPRelease.php
#5
10 Second Club
iTrader: (26)
also curious why they developed this head, all Tony Mamo ever talks about is port velocity, torque, blah blah blah. Now he has a 245 head with no pinch ready to take on the world. I like this quote:
"It will drop on your 23° shortblock as easily as our 227 or 235 SBC product and in fact shares indentical valve centerlines and rocker stud locations to both of those heads. However...this product will not accept stud mount style rockers and a shaft mount rocker system with the proper intake offset must be used."
LOL
"It will drop on your 23° shortblock as easily as our 227 or 235 SBC product and in fact shares indentical valve centerlines and rocker stud locations to both of those heads. However...this product will not accept stud mount style rockers and a shaft mount rocker system with the proper intake offset must be used."
LOL
#7
I feel there are not many 23* heads that are capable of what AFRs can do in the right hands, and although these are not for everyone you can't say you aren't curious what these would do on an aggressive drag-race NA LT1. 750hp NA on pump gas? I'd love to see it!
If they give me a set for free I'll test them on an engine dyno on my fairly stout SR 383(my .73x" int lift cam should be OK for these heads, but I'd imagine close to .800 would be better) against my current top-of-the-line ported but old style 220s...and then we can separate advertising from real world performance .
Last edited by Puck; 06-27-2011 at 10:57 PM.
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#8
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iTrader: (26)
I ran AFR heads cuz I got a good deal on them, but is was nothing AFR about them anymore like yours. I just don't think they're all they're hyped up to be, and in the 220+cc range there are quite a few other heads I'd rather have. Guys that need shaft mount rockers for their heads just to work don't care if the head is 2000 or 4000 bucks because they've already spent 3x that on their motor. Just my opinion of course. Lots of cheap castings out there to CNC!
#9
I ran AFR heads cuz I got a good deal on them, but is was nothing AFR about them anymore like yours. I just don't think they're all they're hyped up to be, and in the 220+cc range there are quite a few other heads I'd rather have. Guys that need shaft mount rockers for their heads just to work don't care if the head is 2000 or 4000 bucks because they've already spent 3x that on their motor. Just my opinion of course. Lots of cheap castings out there to CNC!
I know I'm not the only one who has ported AFRs and is wondering whether these will out perform them as-is, or if I would have to drop another 1k+ to have them properly ported to notice any benefit.
Plenty of heads are available for SBCs and LT1s that can make huge power...but for most people the price, performance, and ease of just shipping out your stockers to get worked on is too tempting.
#10
10 Second Club
iTrader: (26)
I dunno I've seen the 220 eliminators down 20 cfm on some realistic flow benches, and also 20 hp down to some dart 227s that flowed approximately the same cfm (actually slightly less) on the same bench. The 195 and 210 eliminator heads are REALLY fast ports and that will make good low torque numbers, but there is such thing as too much velocity and choke. Also that silly wing thing in the bowl is absolutely pointless for everything except flow numbers. I've saw one 210cc example where the porter removed the wing, slightly reshaped the port, LOST flow numbers on the bench and made a 5% gain on the dyno. Doesn't sound like much, but that was a 650 hp motor.
#11
8 Second Club
iTrader: (4)
Funny, my AFR's are bolted on as from AFR (with the exception of converting them to reverse flow) are untouched. Has not been in the hands of any head porter. Seem to work fine for me. Mine flowed within 2% of what AFR advertised.
I don't think anyone with a LT1 can use the 245's personally. You need a big bore for that head that we can not get with our stock blocks. The AFR 235's are pushing it and you are still shrouding the valves but they seem to work for me.
As stated above there are many head company choices out there. Some work better than others. I think AFR is on top. But as with any head choice, the rest of your combo has to work well with it to get the goal you desire.
I don't think anyone with a LT1 can use the 245's personally. You need a big bore for that head that we can not get with our stock blocks. The AFR 235's are pushing it and you are still shrouding the valves but they seem to work for me.
As stated above there are many head company choices out there. Some work better than others. I think AFR is on top. But as with any head choice, the rest of your combo has to work well with it to get the goal you desire.
#12
9 Second Club
iTrader: (7)
[QUOTE=Wicked94Z;15091024]Chuck Norris approves of this message
[IMG]pic deletedQUOTE]
dude quit hating lol..........i know ur pro AI for some reason......but you have to admit their stuff is on ALOT of fast cars and their cylinder head design is very good.........ill spare the technical mumbo jumbo from this post
exactly
[IMG]pic deletedQUOTE]
dude quit hating lol..........i know ur pro AI for some reason......but you have to admit their stuff is on ALOT of fast cars and their cylinder head design is very good.........ill spare the technical mumbo jumbo from this post
Funny, my AFR's are bolted on as from AFR (with the exception of converting them to reverse flow) are untouched. Has not been in the hands of any head porter. Seem to work fine for me. Mine flowed within 2% of what AFR advertised.
I don't think anyone with a LT1 can use the 245's personally. You need a big bore for that head that we can not get with our stock blocks. The AFR 235's are pushing it and you are still shrouding the valves but they seem to work for me.
As stated above there are many head company choices out there. Some work better than others. I think AFR is on top. But as with any head choice, the rest of your combo has to work well with it to get the goal you desire.
I don't think anyone with a LT1 can use the 245's personally. You need a big bore for that head that we can not get with our stock blocks. The AFR 235's are pushing it and you are still shrouding the valves but they seem to work for me.
As stated above there are many head company choices out there. Some work better than others. I think AFR is on top. But as with any head choice, the rest of your combo has to work well with it to get the goal you desire.
Last edited by JasonShort; 06-28-2011 at 09:15 AM.
#13
Well Wicked for me the WOW is no pushrod pinch which will increase flow potential way past what any of the current 23* heads can attain. Plus thoughts of a 4.250" bore x 4" stroke Motown SBC with these heads fully ported is what I was thinking of or God forbid someone finally makes a 4.125" bore LT1 block for us to use. Also just out of curiosity does AI have any 23* non raised runner heads that flow 330 cfm, not trying to be a smarta$$ just asking?
#16
9 Second Club
iTrader: (7)
Well Wicked for me the WOW is no pushrod pinch which will increase flow potential way past what any of the current 23* heads can attain. Plus thoughts of a 4.250" bore x 4" stroke Motown SBC with these heads fully ported is what I was thinking of or God forbid someone finally makes a 4.125" bore LT1 block for us to use. Also just out of curiosity does AI have any 23* non raised runner heads that flow 330 cfm, not trying to be a smarta$$ just asking?
Also I've seen plenty of "330" cfm heads get chewed up by "310" cfm heads on identical motors........so be careful with the flow nubmer game......its something that internet people love to talk about........
same here tony....3500lbs running bottom 10's @ 132+mph NA.......about to be 9's
#20
[QUOTE=
I don't think anyone with a LT1 can use the 245's personally. You need a big bore for that head that we can not get with our stock blocks. The AFR 235's are pushing it and you are still shrouding the valves but they seem to work for me.
As stated above there are many head company choices out there. Some work better than others. I think AFR is on top. But as with any head choice, the rest of your combo has to work well with it to get the goal you desire.[/QUOTE]
Here is someone you can believe:
http://speedtalk.com/forum/viewtopic.php?t=18086
Al
I don't think anyone with a LT1 can use the 245's personally. You need a big bore for that head that we can not get with our stock blocks. The AFR 235's are pushing it and you are still shrouding the valves but they seem to work for me.
As stated above there are many head company choices out there. Some work better than others. I think AFR is on top. But as with any head choice, the rest of your combo has to work well with it to get the goal you desire.[/QUOTE]
Here is someone you can believe:
http://speedtalk.com/forum/viewtopic.php?t=18086
Al