I took your advice I called them up the guy was very helpful he put me on the right path he even sent me up with the right intake and the camshaft awesome customer service thank you so much for recommending me to this company
On my 421 sbc I used AFR 220 heads with AFR TXR Titan intake and Holley Terminator X TBI, made 620hp at 6250 rpm and very responsive. Mainly weekend Cruising. Could not be happier. From Down Under.
AFR is probably one of the best head companies out there. I plan on using their heads on my big bock chevy build. I called to ask some question and the customer service was excellent - informative and very friendly
I have 210's on a 434 SB Chev. 10.5 cr, .600 lift, 950 Quick Fuel. It made 598 hp at 6300, with 562 Tq at 4600. In a 3300 lb Nova with a Turbo 350 and 4500 stall it runs 10:40's @ 128. About 6900 through the lights. Some people comment: oh those heads are too small. Then I make a run !! Tons of torque down low and still pulls hard up top. These heads are great and size does matter, my motor is never lazy, and it recovers very well at the shifts. Plus I drive it on the street ! Well done AFR.
Best starting point I know of is application: what rpm range am I really going to use? Brutal honesty is the rule, and observing that powerbands have tradeoffs - no such thing as dead flat VE from 3k to 8k - and your torque curve will prove it.
I do believe AFR is thee best cylinder heads on the market.. There is a reason best engine builders and engine testers like Richard Holdner and Engine master guys use these to test pretty much every HP engines they build!
Was so great to spend time with the whole ARF crew at PRI. It was great to not only get this info on video, but to spend time with Scott off camera and really dive into the way he helps customers find the RIGHT choice to obtain their goals.
About 10 years ago when I was first getting into building engine I researched the internet up and down and came to the conclusion that I wanted to try AFR heads on my first 383, I ordered some 195s, I blew that motor up in short order, so I built another 383, this time with 210s I put that motor together in probably 2015, put over 60k miles on it with a lunati voodoo solid roller, it originally had pinging problems due to my mistakes, it had a bad carb, and hei distributor issues, but at 40k I went with a holley sniper, efi and distributor, went to flat top pistons for more compression, and changed the rod bearings, valves and lifters. It runs hard in my 4800 pound truck and I’m not easy on it you can see it on my page if you want to take a look
Ok I did this got great power, but took a bare untouch head had it cnc for max flow, what a difference, got 100 more horse,and 175 more torque. Your cam is the most important
@@afr-airflowresearch9889 no, thank you for the quality product that a working stiff like me can afford. Used 195 street eliminator in the c4, using a set of enforcers for the c1500. Unbelievable quality for the money
I had the 165s and sold them to another guy. He loves them. I now have a set of 205s for a 351w stroker. Looking forward to seeing what that motor makes.
@@I_like_turtles_67 Hey, I'm thinking about 165s on a stock 351w. You think it will clear ptv with a mild cam, 224/234 @ 050 Edelbrock 7182. I will double check for sure.
@@Big-Lex124 It's best to double check with clay. Has the deck ever been machined? But if I had to guess. I'd say it's going to clear. Just check it. Best of luck. That combo should run pretty good. Are you using an air gap intake? What's the motor going in?
Need a new recommendation for my bbc 427.. 13-1 compression, 3600# car, automatic, trans brake, cam is solid roller bullet, 255/264 @50 . In at 107* . Launch at 4k shift at 7500 currently. Single plain intake custom Willies gas carb. Race fuel. I’m still running the 781 iron heads fully worked over but considering switching to yours: my SBC woke up when I installed your 195s so I’m thinking time to switch. Thanks for your help. Blessed new year to you
i made a set of 283 power pack heads run low 11s and 7:20 in the 8th in a s10 with 1.72-1.50 valves i spent a lot of time on those ! nobody believed they had those teeny tiny stock valves i polished them by hand ! i just ported a set of 906 big block heads for a 383 those went 6:60 in 8th 10:80 in the quarter in a 3200lb car not sure what the horsepower is but id say i probably did something right .
CHI has been doing Clevo for decades and TF must've bees getting requests. Cleveland's are a smaller market than Windsor which already has good heads from CHI, Kasse ect. AFR likely did a study into Clevo heads and found they wouldn't make any money.
I bought a new set of AFR-1110 220cc heads for my Little M SBC400. I haven’t got it in the car yet, but I can’t wait to see how much power it makes at around 40lbs of boost. 🙂👍🏻🔥🙏
hi U could post recommended MCSA or the formula on the website with a waiver saying application must be checked with cust service . Now I am overseas and on a 6400-6500 redline for a 400cuin SBC AFR recommended a 195 1.9 mcsa by phone . What an absolute croc 220cc 2.2 MCSA 3200 stall 3.6 gear 4bbl 1 7/8 primaries these will make any 400 cu breath and use a larger head 400 stock 5800rpm =195 ,,, 400 modified 6500rpm =220 ,,,,,400 12.5 to 1 .CR 7000rpm =227 head To rectify this if I had directly purchased they would have swapped them . BuT I purchased thru an agent [this service is not available because my purchase was done this way ]
One thing you forgot to talk about and that is actually receiving your cylinder heads in a timely manner, 6 months and counting and they are not nothing exotic!
Hi Ross, we apologize about the extended lead times on heads. Our industry has been hit pretty hard by all this. Pretty much all us manufacturers are in the same position, doesn't matter what parts you are ordering. i.e. heads, blocks, pistons, rods, etc. I can honestly tell you that no one here at Air Flow Research is happy about the situation, especially our Sales and Tech departments.
@@trailerparkcryptoking5213 no that is not what he said, he said it's the third thing he will tell you, not it's the third most important. He's also trying to explain it in layman's terms, cross section is what you actually pay attention to. Port volume will be different if the runner is raised as it has just become longer. So you can use volume if you're comparing to 23deg SBC heads but the 18, 14, 13, 12 and 11 degree heads will have longer ports because the runner is actually raised making comparing port volume of a 23 degree SBC head usless to an 18 degree head.
@@shanerorko8076 lookin here! We have an actual smart guy, not just an internet moron that only knows what his uncle told him. I am an engineer and vastly understand volumetric, flow rates, fluid mechanics and the fact that heads do not ever see steady state flow. Velocity of fluid flow through an intake port constantly changes with RPM and will change with changes in intake valve timing events! How’s that padna? If you try to correct these facts then you know nothing!
The right afr head for my engine ? Easy the one that says trick flow it…… They great heads just outgrew the 220 had to step it up while retaining the factory valve angle.
You can have wery big Heads if you have weeber 55mm carbs 4 off them! I have proff..csb 356 0.40 borr. 1993 i ran 10 sek time 402m..1600kg car...Brodix 11X bigg boy ojäää... I hope four The 9sek time...Street car....somting ells coming in May way....today i weel run in The 8sek time i biliv hoppylly i can prov this with The old Csb parts...soon i hope csb 434 cui weel dou this happen...
Their prices are comparable to other manufacturers such as Brodie, Frankenstein, TF…..if you want spectacular heads from any reputable company that stands behind their product, you have to pay from any company. Or you can buy some knockoffs from speedmaster or eBay and roll the dice on quality but then you might grenade your engine.
@@popeye089 I disagree, their average race heads might be comparable to others, but if you want their best CNC heads you're gonna pay through the roof... plenty of other top name heads that perform well for less than AFR... I run as cast Dart pro-1's on my NA 427 Camaro, It runs 9.60's @138. When I priced heads, AFR was considerably more...But nobody's telling you not to buy AFR... If you wanna spend more money on heads, have at it...
I took your advice I called them up the guy was very helpful he put me on the right path he even sent me up with the right intake and the camshaft awesome customer service thank you so much for recommending me to this company
AFR is a great company
Casted in China now
@@bidenstoletheelection9116 Enforcers not the Eliminators. Those are cast down the st from me in Socal
@@bidenstoletheelection9116just like 90% of all aftermarket heads.
@@bidenstoletheelection9116they’re cheaper line is, but they still have their USA
On my 421 sbc I used AFR 220 heads with AFR TXR Titan intake and Holley Terminator X TBI, made 620hp at 6250 rpm and very responsive. Mainly weekend Cruising. Could not be happier. From Down Under.
AFR is probably one of the best head companies out there. I plan on using their heads on my big bock chevy build. I called to ask some question and the customer service was excellent - informative and very friendly
Scott is the cylinder head man.i ordered the street elimanator heads thanks to scott.hes a very smart professional man.afr is lucky to have this man
I have 210's on a 434 SB Chev. 10.5 cr, .600 lift, 950 Quick Fuel. It made 598 hp at 6300, with 562 Tq at 4600. In a 3300 lb Nova with a Turbo 350 and 4500 stall it runs 10:40's @ 128. About 6900 through the lights. Some people comment: oh those heads are too small. Then I make a run !! Tons of torque down low and still pulls hard up top. These heads are great and size does matter, my motor is never lazy, and it recovers very well at the shifts. Plus I drive it on the street ! Well done AFR.
I wanted 220s for my sbf 427.
I ended up with 205s.
@@I_like_turtles_67 love my 220's on my 302, power from start till whenever I feel like shifting at
I started racing in 1968 and YES this man knows what he is talking about so call him !
AFR really is unparalleled in the industry
Best starting point I know of is application: what rpm range am I really going to use? Brutal honesty is the rule, and observing that powerbands have tradeoffs - no such thing as dead flat VE from 3k to 8k - and your torque curve will prove it.
I do believe AFR is thee best cylinder heads on the market.. There is a reason best engine builders and engine testers like Richard Holdner and Engine master guys use these to test pretty much every HP engines they build!
Best off the shelve head
Was so great to spend time with the whole ARF crew at PRI. It was great to not only get this info on video, but to spend time with Scott off camera and really dive into the way he helps customers find the RIGHT choice to obtain their goals.
Looks like they’ve got great customer service. Still didn’t call and bought AFR1660s for my LS 383 stroker with FAST LSXR 102 and Summit Saturn V cam.
We’ve been doing business with these guys for some time now and their products are great. Zero issues and Their customer service second to none.
Thanks for the kind words Hector!
About 10 years ago when I was first getting into building engine I researched the internet up and down and came to the conclusion that I wanted to try AFR heads on my first 383, I ordered some 195s, I blew that motor up in short order, so I built another 383, this time with 210s I put that motor together in probably 2015, put over 60k miles on it with a lunati voodoo solid roller, it originally had pinging problems due to my mistakes, it had a bad carb, and hei distributor issues, but at 40k I went with a holley sniper, efi and distributor, went to flat top pistons for more compression, and changed the rod bearings, valves and lifters. It runs hard in my 4800 pound truck and I’m not easy on it you can see it on my page if you want to take a look
I had AFR 210 CNC ported on a 434 680hp large solid roller 685 278/284@50 and 383 580hp street roller 575 255@50
Ok I did this got great power, but took a bare untouch head had it cnc for max flow, what a difference, got 100 more horse,and 175 more torque. Your cam is the most important
What a solid dude!!
Thanks Brother, you as well.
Wish you guys would build heads for Mopar!
I love my gm 088 rectangular port heads
Just bought my second set of heads from afr, great stuff for the price.
Thank you for the repeat business, Bill!
@@afr-airflowresearch9889 no, thank you for the quality product that a working stiff like me can afford. Used 195 street eliminator in the c4, using a set of enforcers for the c1500. Unbelievable quality for the money
I had the 165s and sold them to another guy. He loves them.
I now have a set of 205s for a 351w stroker. Looking forward to seeing what that motor makes.
@@I_like_turtles_67 Hey, I'm thinking about 165s on a stock 351w. You think it will clear ptv with a mild cam, 224/234 @ 050 Edelbrock 7182. I will double check for sure.
@@Big-Lex124 It's best to double check with clay. Has the deck ever been machined? But if I had to guess. I'd say it's going to clear. Just check it.
Best of luck. That combo should run pretty good.
Are you using an air gap intake?
What's the motor going in?
Sounds like a calculator commercial 😂 , seriously though AFR cylinder heads are my go to.
I’m curious to see what chart he was holding in his hands
I’m wondering if my 4.030 bore is a good fit for my 190cc heads-2.02/1.60 valved and 1-5/8 mid length headers to 6000 rpm?
These heads are awesome
Need a new recommendation for my bbc 427.. 13-1 compression, 3600# car, automatic, trans brake, cam is solid roller bullet, 255/264 @50 . In at 107* . Launch at 4k shift at 7500 currently. Single plain intake custom Willies gas carb. Race fuel. I’m still running the 781 iron heads fully worked over but considering switching to yours: my SBC woke up when I installed your 195s so I’m thinking time to switch. Thanks for your help. Blessed new year to you
@@chadhulstein5661 Do you have a preference on oval or rectangular port?
What’s the flow numbers for the hemi
Could i get a 75cc chambered combustion small block chevy cylinder head. 1.94" intake valve size/1.50" exaust valve size? Go Sam Houston.
What head could. I replace the 624s on a 85 G30 Motor Home need torque
The BEST ARE MADE IN USA 🇺🇸 😍
Is there a formula to calculate the preferred valve size using the bore size, desired rpm range, or engine displacement?
Rough formula, bore x .51 (or .52). Is what many go by, but the other variables come into play also.
i made a set of 283 power pack heads run low 11s and 7:20 in the 8th in a s10 with 1.72-1.50 valves i spent a lot of time on those ! nobody believed they had those teeny tiny stock valves i polished them by hand ! i just ported a set of 906 big block heads for a 383 those went 6:60 in 8th 10:80 in the quarter in a 3200lb car not sure what the horsepower is but id say i probably did something right .
And they make nothing for the Mopar guys?
Can't wait to get mongoose ls3 heads!
Hawk?
🙋🙋🙋 AFR still doesn't make Cleveland heads or intakes so I have no interest in AFR. Got my Trick Flow 225cc Cleveland heads - top notch
Canted heads have their place. Just as inline valve heads like AFRs.
I like both.
But I went with AFRs for my windsor build.
CHI has been doing Clevo for decades and TF must've bees getting requests.
Cleveland's are a smaller market than Windsor which already has good heads from CHI, Kasse ect.
AFR likely did a study into Clevo heads and found they wouldn't make any money.
205cc afr on a 384cid LS1 custom intake and 14:1 compression equaled some of the flatest power curves on a 500whp engine.
I bought a new set of AFR-1110 220cc heads for my Little M SBC400. I haven’t got it in the car yet, but I can’t wait to see how much power it makes at around 40lbs of boost. 🙂👍🏻🔥🙏
Loving my 220s on my 610hp 434 sbc :)
What’s the best heads for a383 with 12:5:1fome pistons
Ristrictor plates and racing. That's why I keep it on the streets.
I want to build the engine that works for the 220head.
Isn't cfm really the important number?
hi
U could post recommended MCSA or the formula on the website with a waiver saying application must be checked with cust service . Now I am overseas and on a 6400-6500 redline for a 400cuin SBC AFR recommended a 195 1.9 mcsa by phone . What an absolute croc 220cc 2.2 MCSA
3200 stall 3.6 gear 4bbl 1 7/8 primaries these will make any 400 cu breath and use a larger head
400 stock 5800rpm =195 ,,, 400 modified 6500rpm =220 ,,,,,400 12.5 to 1 .CR 7000rpm =227 head
To rectify this if I had directly purchased they would have swapped them . BuT I purchased thru an agent [this service is not available because my purchase was done this way ]
So what would be the best size head for a 540 bbc 10-5-1 comp?
Depends what you are using the engine for.
One thing you forgot to talk about and that is actually receiving your cylinder heads in a timely manner, 6 months and counting and they are not nothing exotic!
Hi Ross, we apologize about the extended lead times on heads. Our industry has been hit pretty hard by all this. Pretty much all us manufacturers are in the same position, doesn't matter what parts you are ordering. i.e. heads, blocks, pistons, rods, etc. I can honestly tell you that no one here at Air Flow Research is happy about the situation, especially our Sales and Tech departments.
@@afr-airflowresearch9889 Great service most would blow it off
I waited four months for pistons. Supply chain issues are affecting everyone.
It's funny how they list port volume but say it's useless.
I could have sworn he said it was the number three most important?
@@trailerparkcryptoking5213 no that is not what he said, he said it's the third thing he will tell you, not it's the third most important.
He's also trying to explain it in layman's terms, cross section is what you actually pay attention to.
Port volume will be different if the runner is raised as it has just become longer.
So you can use volume if you're comparing to 23deg SBC heads but the 18, 14, 13, 12 and 11 degree heads will have longer ports because the runner is actually raised making comparing port volume of a 23 degree SBC head usless to an 18 degree head.
@@shanerorko8076 lookin here! We have an actual smart guy, not just an internet moron that only knows what his uncle told him. I am an engineer and vastly understand volumetric, flow rates, fluid mechanics and the fact that heads do not ever see steady state flow. Velocity of fluid flow through an intake port constantly changes with RPM and will change with changes in intake valve timing events! How’s that padna? If you try to correct these facts then you know nothing!
The right afr head for my engine ? Easy the one that says trick flow it……
They great heads just outgrew the 220 had to step it up while retaining the factory valve angle.
You can have wery big Heads if you have weeber 55mm carbs 4 off them! I have proff..csb 356 0.40 borr. 1993 i ran 10 sek time 402m..1600kg car...Brodix 11X bigg boy ojäää... I hope four The 9sek time...Street car....somting ells coming in May way....today i weel run in The 8sek time i biliv hoppylly i can prov this with The old Csb parts...soon i hope csb 434 cui weel dou this happen...
Mentions that the math is so important. Reaches for a calculator. Waiting to hear some formula numbers and nothing.
Thank you for your knowledge and videos USA 🇺🇸 TRUMP 2024
Nobody can afford to buy AFR heads... PERIOD!
Their prices are comparable to other manufacturers such as Brodie, Frankenstein, TF…..if you want spectacular heads from any reputable company that stands behind their product, you have to pay from any company. Or you can buy some knockoffs from speedmaster or eBay and roll the dice on quality but then you might grenade your engine.
@@popeye089 I disagree, their average race heads might be comparable to others, but if you want their best CNC heads you're gonna pay through the roof... plenty of other top name heads that perform well for less than AFR... I run as cast Dart pro-1's on my NA 427 Camaro, It runs 9.60's @138. When I priced heads, AFR was considerably more...But nobody's telling you not to buy AFR... If you wanna spend more money on heads, have at it...
Terrible interview