Buying the AFR 165's 3 quick questions
#11
RE: Buying the AFR 165's 3 quick questions
Maybe this will clear things up. I want to buy the heads, but i dont know what to tell the guy after i purchase them. It seems to be buy the way this auctions sounds, that the non emissions are better, thats why i ask.
This auction is for a pair of AFR 165cc heads in either 58cc or 61cc configuration, either pedestal or stud mount version, and Emissions legal or NON-Emissions. Includes 100% CNC ported combustion chambers, intake ports, and exhaust ports along with a competition 3 angle valve job. Includes 3/8 rocker studs, 5/16 guide plates, 1.450" OD hydraulic dual valve springs with dampner (120 lbs on seat, .550" maximum lift), and 10 degree valve locks with bronze guides.
This is the ultimate head for your street 302-347! No piston notching required for moderate cams on stock short blocks!
For the ultimate small block Ford street car, you’ve got to use AFR’s all new 165cc emissions legal cylinder heads. Unlike some aftermarket heads, AFR’s Ford head (CARB EO #250-3) fits all your stock components; no special parts are required! With 1.900 intake valves, 1.600” exhaust valve, and combustion chamber volumes of 58cc or 61cc, and 69cc exhaust ports, AFR’s new 165cc Ford head is perfect for 289 and 302 engines operating from idle to 6000 rpm. A 3/4” thick head deck makes the AFR head ideal for nitrous or blower applications. Will not accept rail rocker arms. Hardened push rods required with part numbers 1400 and 1402. Note: 1986 5.0L must have piston notched for clearance.
The Non-Emission Legal heads come ready for the maximum street/strip Small Block Ford performance possible. They are not emissions legal. With the 165 coming with 1.900 intake and 1.600 exhaust valves and the 185 sporting 2.020 intake and 1.600 exhaust valves. Both heads feature 58cc or 61cc combustion chamber with 69cc exhaust ports. Both the 165cc and 185cc have available as an option nitrous or blower exhaust ports featuring either a 75cc ultra high flowing exhaust port. With AFR’s trademark 3/4” thick head deck, it’s no problem handling that additional cylinder pressure. Each head is also drilled for the larger 1/2” head bolt hole for maximum head gasket retention as a standard feature of this serious race piece in street disguise.
This auction is for a pair of AFR 165cc heads in either 58cc or 61cc configuration, either pedestal or stud mount version, and Emissions legal or NON-Emissions. Includes 100% CNC ported combustion chambers, intake ports, and exhaust ports along with a competition 3 angle valve job. Includes 3/8 rocker studs, 5/16 guide plates, 1.450" OD hydraulic dual valve springs with dampner (120 lbs on seat, .550" maximum lift), and 10 degree valve locks with bronze guides.
This is the ultimate head for your street 302-347! No piston notching required for moderate cams on stock short blocks!
For the ultimate small block Ford street car, you’ve got to use AFR’s all new 165cc emissions legal cylinder heads. Unlike some aftermarket heads, AFR’s Ford head (CARB EO #250-3) fits all your stock components; no special parts are required! With 1.900 intake valves, 1.600” exhaust valve, and combustion chamber volumes of 58cc or 61cc, and 69cc exhaust ports, AFR’s new 165cc Ford head is perfect for 289 and 302 engines operating from idle to 6000 rpm. A 3/4” thick head deck makes the AFR head ideal for nitrous or blower applications. Will not accept rail rocker arms. Hardened push rods required with part numbers 1400 and 1402. Note: 1986 5.0L must have piston notched for clearance.
The Non-Emission Legal heads come ready for the maximum street/strip Small Block Ford performance possible. They are not emissions legal. With the 165 coming with 1.900 intake and 1.600 exhaust valves and the 185 sporting 2.020 intake and 1.600 exhaust valves. Both heads feature 58cc or 61cc combustion chamber with 69cc exhaust ports. Both the 165cc and 185cc have available as an option nitrous or blower exhaust ports featuring either a 75cc ultra high flowing exhaust port. With AFR’s trademark 3/4” thick head deck, it’s no problem handling that additional cylinder pressure. Each head is also drilled for the larger 1/2” head bolt hole for maximum head gasket retention as a standard feature of this serious race piece in street disguise.
#13
RE: Buying the AFR 165's 3 quick questions
165 Emissions and Non-Emissions will flow the same, regardless. The 58cc and 61cc have different shaped combustion chambers, so it's advisable to go 58cc (better flowing of the two). The larger head bolt hole doesn't matter if your block doesn't have that big of a bolt-hole (302s and 351s have diff. bolt sizes)
They have the same valve sizes, the same runner dimensions, and the same flow (emissions to non emissions)
It depends all on if you want to take your EGR out or not.
They have the same valve sizes, the same runner dimensions, and the same flow (emissions to non emissions)
It depends all on if you want to take your EGR out or not.
#14
RE: Buying the AFR 165's 3 quick questions
ORIGINAL: tuff5liter
i just bought the AFR 65s and i have to suggest this price here it was the best price i found and it has free shipping. Good Luck.
i just bought the AFR 65s and i have to suggest this price here it was the best price i found and it has free shipping. Good Luck.
Thanks for that link! Cheapest I found was 1310.
ORIGINAL: RawGtPower
Maybe this will clear things up. I want to buy the heads, but i dont know what to tell the guy after i purchase them. It seems to be buy the way this auctions sounds, that the non emissions are better, thats why i ask.
This auction is for a pair of AFR 165cc heads in either 58cc or 61cc configuration, either pedestal or stud mount version, and Emissions legal or NON-Emissions. Includes 100% CNC ported combustion chambers, intake ports, and exhaust ports along with a competition 3 angle valve job. Includes 3/8 rocker studs, 5/16 guide plates, 1.450" OD hydraulic dual valve springs with dampner (120 lbs on seat, .550" maximum lift), and 10 degree valve locks with bronze guides.
This is the ultimate head for your street 302-347! No piston notching required for moderate cams on stock short blocks!
For the ultimate small block Ford street car, you’ve got to use AFR’s all new 165cc emissions legal cylinder heads. Unlike some aftermarket heads, AFR’s Ford head (CARB EO #250-3) fits all your stock components; no special parts are required! With 1.900 intake valves, 1.600” exhaust valve, and combustion chamber volumes of 58cc or 61cc, and 69cc exhaust ports, AFR’s new 165cc Ford head is perfect for 289 and 302 engines operating from idle to 6000 rpm. A 3/4” thick head deck makes the AFR head ideal for nitrous or blower applications. Will not accept rail rocker arms. Hardened push rods required with part numbers 1400 and 1402. Note: 1986 5.0L must have piston notched for clearance.
The Non-Emission Legal heads come ready for the maximum street/strip Small Block Ford performance possible. They are not emissions legal. With the 165 coming with 1.900 intake and 1.600 exhaust valves and the 185 sporting 2.020 intake and 1.600 exhaust valves. Both heads feature 58cc or 61cc combustion chamber with 69cc exhaust ports. Both the 165cc and 185cc have available as an option nitrous or blower exhaust ports featuring either a 75cc ultra high flowing exhaust port. With AFR’s trademark 3/4” thick head deck, it’s no problem handling that additional cylinder pressure. Each head is also drilled for the larger 1/2” head bolt hole for maximum head gasket retention as a standard feature of this serious race piece in street disguise.
Maybe this will clear things up. I want to buy the heads, but i dont know what to tell the guy after i purchase them. It seems to be buy the way this auctions sounds, that the non emissions are better, thats why i ask.
This auction is for a pair of AFR 165cc heads in either 58cc or 61cc configuration, either pedestal or stud mount version, and Emissions legal or NON-Emissions. Includes 100% CNC ported combustion chambers, intake ports, and exhaust ports along with a competition 3 angle valve job. Includes 3/8 rocker studs, 5/16 guide plates, 1.450" OD hydraulic dual valve springs with dampner (120 lbs on seat, .550" maximum lift), and 10 degree valve locks with bronze guides.
This is the ultimate head for your street 302-347! No piston notching required for moderate cams on stock short blocks!
For the ultimate small block Ford street car, you’ve got to use AFR’s all new 165cc emissions legal cylinder heads. Unlike some aftermarket heads, AFR’s Ford head (CARB EO #250-3) fits all your stock components; no special parts are required! With 1.900 intake valves, 1.600” exhaust valve, and combustion chamber volumes of 58cc or 61cc, and 69cc exhaust ports, AFR’s new 165cc Ford head is perfect for 289 and 302 engines operating from idle to 6000 rpm. A 3/4” thick head deck makes the AFR head ideal for nitrous or blower applications. Will not accept rail rocker arms. Hardened push rods required with part numbers 1400 and 1402. Note: 1986 5.0L must have piston notched for clearance.
The Non-Emission Legal heads come ready for the maximum street/strip Small Block Ford performance possible. They are not emissions legal. With the 165 coming with 1.900 intake and 1.600 exhaust valves and the 185 sporting 2.020 intake and 1.600 exhaust valves. Both heads feature 58cc or 61cc combustion chamber with 69cc exhaust ports. Both the 165cc and 185cc have available as an option nitrous or blower exhaust ports featuring either a 75cc ultra high flowing exhaust port. With AFR’s trademark 3/4” thick head deck, it’s no problem handling that additional cylinder pressure. Each head is also drilled for the larger 1/2” head bolt hole for maximum head gasket retention as a standard feature of this serious race piece in street disguise.
#17
RE: Buying the AFR 165's 3 quick questions
Tuff--Here is the email I sent to AFR:
I'm trying to find out what the max lift is w/o causing piston to valve clearance issues on a 1990 Mustang 5.0.
The combo I am considering is AFR 165's, FRPP E cam (duration 220* and .498 lift int & exh) or TFS stage 1 cam (duration 221*/225* and .499/.510 lift int/exh), and 1.72 roller rockers. The E cam and 1.72's put the lift around .535, so w/ the exhaust lift slightly higher w/ the stage 1 cam, the lift would be around .546.
Would either of these combos work w/o flycutting the pistons or replacing them on a stock bottom end? What is the max lift on the AFR 165's before running into clearance issues?
Here is the reply:
The standard springs on the 165's are good for up to .550" of lift. From my experience, I have found .530" to be about all that a factory bottom end will accept without notching the pistons. You really NEED to check your tolerances as you may not have sufficient clearance. It will be close. Do not just bolt it together and hope it will be OK, clay the pistons and make sure that you don't make your next e-mail to me into one asking for a price on the intake valves. I can not tell you how many times I have had to send out 8 intake valves due to this step getting skipped. Let me know if you have more questions.
Thanks,
Dave
I'm trying to find out what the max lift is w/o causing piston to valve clearance issues on a 1990 Mustang 5.0.
The combo I am considering is AFR 165's, FRPP E cam (duration 220* and .498 lift int & exh) or TFS stage 1 cam (duration 221*/225* and .499/.510 lift int/exh), and 1.72 roller rockers. The E cam and 1.72's put the lift around .535, so w/ the exhaust lift slightly higher w/ the stage 1 cam, the lift would be around .546.
Would either of these combos work w/o flycutting the pistons or replacing them on a stock bottom end? What is the max lift on the AFR 165's before running into clearance issues?
Here is the reply:
The standard springs on the 165's are good for up to .550" of lift. From my experience, I have found .530" to be about all that a factory bottom end will accept without notching the pistons. You really NEED to check your tolerances as you may not have sufficient clearance. It will be close. Do not just bolt it together and hope it will be OK, clay the pistons and make sure that you don't make your next e-mail to me into one asking for a price on the intake valves. I can not tell you how many times I have had to send out 8 intake valves due to this step getting skipped. Let me know if you have more questions.
Thanks,
Dave
#18
RE: Buying the AFR 165's 3 quick questions
ORIGINAL: waxyourboard
The 58cc and 61cc have different shaped combustion chambers, so it's advisable to go 58cc (better flowing of the two)
The 58cc and 61cc have different shaped combustion chambers, so it's advisable to go 58cc (better flowing of the two)
also im pretty sure all the stock 165 heads have springs good to .550 lift, but they say the clearance for the stock bottom end is only good up to .530, but that seems kinda low to me?
#20
RE: Buying the AFR 165's 3 quick questions
actually .540 is where it shows signs of spring bind,and floating issues,but lift isn't the only thing to keep in check.
duration can cause floating/binding issues also.
duration can cause floating/binding issues also.