AFR Vs MTI heads
06-13-2004, 09:22 PM
#1
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AFR Vs MTI heads Im sorry if this has been posted before or anything but need a little help..Now I have my cam,and all the cam stuff like pushrods etc.and long tubes going into my 02 LS1 6 speed; Just curious thow i want to get one of these 2 heads but unsure of which one to get first off I have a small cam T1 from MTI 221/221/575/575/112.Anyway my only question is the MTI stage 2E are cheaper than the AFR 205 heads now resaon for this questions is would i see a big difference in power with my cam set up are the AFR worth the extra cash or am I even getting the right size heads for this cam 
Please excuse me but this is my first cam and heads install and just want to go about it that right way ..any help would be greatly appreciated ThanX..
Please excuse me but this is my first cam and heads install and just want to go about it that right way ..any help would be greatly appreciated ThanX.. Last edited by Rick-LS1; 06-13-2004 at 09:31 PM.
06-13-2004, 09:43 PM
#2
It'll be hard to say only because there hasn't been much real world testing of the AFR's. I would have to assume since the 2E's are MTI's cheaper heads, that the AFR's would be better. If you don't have the time to wait on a few more people to get the AFR's, MTI is a well repected company and there heads always make pretty good numbers. I couldn't even imagine the back order on a set of AFR's right now.
06-13-2004, 09:50 PM
#4
i'd go with the mti's since they are cheaper. with the baby cam your running the diff between the afr's and the mti's will be very small if any, if your gonnna go with stage 2 heads i'd do a cam swap while your in there to at the very least a 224/224, or go with a fm11 supposedly with tuning its very streetable. if you still wanna keep that cam i'd go with some cheaper heads like some patriot 5.3's its really not worth your money to go with stage 2's and that cam imo.
06-13-2004, 11:25 PM
#6
whats your time table? if its like you need heads now then just get the 2e's. they are a proven setup and great head. if you have time to wait then i would do that and see what the AFR's do on multiple setups. as of now there is very little factual info.
06-13-2004, 11:27 PM
#7
Originally Posted by Ls1Rx-7
i'd go with the mti's since they are cheaper. with the baby cam your running the diff between the afr's and the mti's will be very small if any, if your gonnna go with stage 2 heads i'd do a cam swap while your in there to at the very least a 224/224, or go with a fm11 supposedly with tuning its very streetable. if you still wanna keep that cam i'd go with some cheaper heads like some patriot 5.3's its really not worth your money to go with stage 2's and that cam imo.
. a T1 with the 2e's and bolt ons should hit 400rwhp or more. Trending Topics
06-14-2004, 02:50 AM
#8
Originally Posted by jrp
head stages are relative and vary from manufacture. also you dont need a huge cam to make great power . a T1 with the 2e's and bolt ons should hit 400rwhp or more.
. a T1 with the 2e's and bolt ons should hit 400rwhp or more.
06-14-2004, 07:19 AM
#9
My experience with AFR heads on Gen-1 smallblocks wasn't that great...valve cover holes are shallow, have to cut your bolts...oil return holes are smaller and located higher, drainback at sustained high revs is problematic...valve cover sealing surface irregularities interfered with my covers, had to grind a bit...etc.
They made great power, but not enough to be worth the hassles.
Again, these were Gen-1 SBC heads, not LS1s, so the data is strictly anecdotal.
They made great power, but not enough to be worth the hassles.
Again, these were Gen-1 SBC heads, not LS1s, so the data is strictly anecdotal.
06-14-2004, 11:14 AM
#11
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Originally Posted by jrp
whats your time table? if its like you need heads now then just get the 2e's. they are a proven setup and great head. if you have time to wait then i would do that and see what the AFR's do on multiple setups. as of now there is very little factual info.
Sorry i dont know what that means my time table anyway right now i have not yet installed anything my cam long tubes and everthing else are just sitting waiting for the install.Reason for head question is because i came across a bit more cash (Bonus check YA hoo) anyway i might as well get heads and install the heads before i go into tearing everthing out. But i also heard that the 5.3 heads would have more compression thefore i would gain better horsepower with my cam set up rather than getting AFR or the stage 2e heads but then again im not sure just something a friend of mind told me sounds like a good idea..
ThanX for the replys keep um comming... very helpful..i guess you can say im learning as im going this is how i was with my cam thats why I finally set my heart on the T1 cam not to big nor not to small but just the right size for everyday driving and have a little kick for when i need it...And i was told that that cam would not be bad when i im ready for my prochager set up but thats way later.....
06-14-2004, 02:43 PM
#12
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Just finishing a deal with Jayson at MTI on a StealthII 224/220, .581/.581 116lsa and a set of 5.3 Stage2 E which will make over 400rwhp with around 11.4 CR (depending whether I use GM or Cometic gaskets, that may change a little) $1795.00 for those heads is a steal.
You will get a flow card with the heads and Jayson garantees they will flow what the card says. Each head is put on a flow bench before shipping. Now that's what i call quality control.
You will get a flow card with the heads and Jayson garantees they will flow what the card says. Each head is put on a flow bench before shipping. Now that's what i call quality control.
Last edited by PREDATOR-Z; 06-15-2004 at 08:03 PM.
06-14-2004, 04:54 PM
#13
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FWIW the cars with AFR heads are all putting 450+rwhp with the smallest cam being a "224" cam.
If I recall there was a runner volume quoted by "MTI" on the corvetteforum at 230cc when the AFR's are 205's and flow close to each other.
Here is the link with that runner volume quote
http://forums.corvetteforum.com/zerothread?id=658512
I see you live in Houston, so your also going to pay sales tax on it which is 8.25%, works out to $148.08. So end total is roughly ~$1943. Your looking at a little over a $300 difference between the two.
The heads are VERY close to shipping if not already so you should see more results very soon.
If I recall there was a runner volume quoted by "MTI" on the corvetteforum at 230cc when the AFR's are 205's and flow close to each other.
Here is the link with that runner volume quote
http://forums.corvetteforum.com/zerothread?id=658512
I see you live in Houston, so your also going to pay sales tax on it which is 8.25%, works out to $148.08. So end total is roughly ~$1943. Your looking at a little over a $300 difference between the two.
The heads are VERY close to shipping if not already so you should see more results very soon.
Last edited by sscam68; 06-14-2004 at 05:29 PM.
06-14-2004, 05:39 PM
#14
I would go with AFR's.
They have a thicker deck, and the ability to be ported down the road.
I think with AFR's on the market, it will drive the cost of ported,stock heads down.
The AFR 205 preliminary reports are pretty good.
In my book the aftermarket head seems like a better value.
But my heads have never been off the car, I am NO expert.\
The longer you wait, the better off you are.
They have a thicker deck, and the ability to be ported down the road.
I think with AFR's on the market, it will drive the cost of ported,stock heads down.
The AFR 205 preliminary reports are pretty good.
In my book the aftermarket head seems like a better value.
But my heads have never been off the car, I am NO expert.\
The longer you wait, the better off you are.
06-15-2004, 09:51 AM
#18
TECH Senior Member
Originally Posted by sscam68
FWIW the cars with AFR heads are all putting 450+rwhp with the smallest cam being a "224" cam.
If I recall there was a runner volume quoted by "MTI" on the corvetteforum at 230cc when the AFR's are 205's and flow close to each other.
Here is the link with that runner volume quote
http://forums.corvetteforum.com/zerothread?id=658512
I see you live in Houston, so your also going to pay sales tax on it which is 8.25%, works out to $148.08. So end total is roughly ~$1943. Your looking at a little over a $300 difference between the two.
The heads are VERY close to shipping if not already so you should see more results very soon.
If I recall there was a runner volume quoted by "MTI" on the corvetteforum at 230cc when the AFR's are 205's and flow close to each other.
Here is the link with that runner volume quote
http://forums.corvetteforum.com/zerothread?id=658512
I see you live in Houston, so your also going to pay sales tax on it which is 8.25%, works out to $148.08. So end total is roughly ~$1943. Your looking at a little over a $300 difference between the two.
The heads are VERY close to shipping if not already so you should see more results very soon.
2- AFR with G5X3 put down about 470 (On a Vette LS6, not an LS1). But that was not stock AFR's (11.4 CR). Off the shelf AFR are 66cc chambers and require a spring upgrade. So prices will be close to $2500.00
The question was MTI 2E or 205 AFR
5.3 Stage 2E are $1795.00 (With Tit retainers and spring seats, 58cc, High lift springs, flow tested etc..) In brief the "Works". They will flow over 300 intake and 210 Exh. And best of all, they have been tested for a few years.
I worked out a H/C package for the price of a set of AFR's. (2E, cam, P-rods, gaskets, ARP bolts) Quality package from a renown quality service shop.
06-15-2004, 10:07 AM
#19
Don't let the low price of the MTI 2E heads fool you, they are top-quality heads and perform just as well on stock cube engines as their 2R heads. My 2e (5.7L heads) and X1 cam pulled 427 rwhp thru catalytics. Will be doing an offroad Y setup soon.
Tony
Tony
06-15-2004, 10:46 AM
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Originally Posted by PREDATOR-Z
1- 450rwhp with a 224/.581/112 has not been done with AFR's yet (As far as I know) When u said 224, u have to specify which.
2- AFR with G5X3 put down about 470 (On a Vette LS6, not an LS1). But that was not stock AFR's (11.4 CR). Off the shelf AFR are 66cc chambers and require a spring upgrade. So prices will be close to $2500.00
The question was MTI 2E or 205 AFR
5.3 Stage 2E are $1795.00 (With Tit retainers and spring seats, 58cc, High lift springs, flow tested etc..) In brief the "Works". They will flow over 300 intake and 210 Exh. And best of all, they have been tested for a few years.
I worked out a H/C package for the price of a set of AFR's. (2E, cam, P-rods, gaskets, ARP bolts) Quality package from a renown quality service shop.
2- AFR with G5X3 put down about 470 (On a Vette LS6, not an LS1). But that was not stock AFR's (11.4 CR). Off the shelf AFR are 66cc chambers and require a spring upgrade. So prices will be close to $2500.00
The question was MTI 2E or 205 AFR
5.3 Stage 2E are $1795.00 (With Tit retainers and spring seats, 58cc, High lift springs, flow tested etc..) In brief the "Works". They will flow over 300 intake and 210 Exh. And best of all, they have been tested for a few years.
I worked out a H/C package for the price of a set of AFR's. (2E, cam, P-rods, gaskets, ARP bolts) Quality package from a renown quality service shop.
. 468 was achieved on an LS1 Corvette. As far as the "224" is concerned you can PM Tony Mamo@AFR, he'll give you the grind #. Besides that obscure number doesn't say anything about the cam, although people think it does, hence the quotes.2. 485 to be exact, again the graph has been posted on this board. That doesn't mean the person in question is going to have the CR raised or opt for the upgraded springs. That brings the price down to just under $2300. Didn't you read? The person is running this cam "221/221/575/575/112", the springs can handle .6+ lift. Why would a spring upgrade be required?
205cc@300+cfm > 230cc@300+cfm , whats the problem
BTW I am not bringing into question the quality of the port work on the 2E heads.......