Steve and the Westech Performance Group have been a fixture in dyno testing as long as I've been alive(I'm 56), and here's to many more years of it.

"Scat" really means poop. 💩 I, personally, would have picked a different name. 😑

Their high lift numbers are not that good, can get OEM heads ported to out flow these heads by plenty for a fraction of what these AFR heads cost. Just buy the AFR Mongoose 260 heads if want a great head that out flows most everything in its class and forget offshore made Enforcers.

Not the proper way to do this, couple key steps are skipped. Whos running things these days?

3-4 numbers not bad at all. the rest isnt impressive for a 12 deg head and runner size?

So who designed the ports in these heads, curious

Need to get Chris and Tony Mamo back in there while theres still a rep to save. CS and product was so much better in every way. Period...many in the industry feel the same way

What’s the best heads for a383 with 12:5:1fome pistons

AFR the best !

Thank you for your knowledge and videos USA 🇺🇸 TRUMP 2024

Nobody can afford to buy AFR heads... PERIOD!

What head could. I replace the 624s on a 85 G30 Motor Home need torque

Cute for sure

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.

Please for the love of God. Don't measure push rods with a tape measure

Used these guys many times to flow heads for me, being a little guy with little to spend they had plenty of patience with my stupid projects Id bring to their flowbench.

im rebuilding a single cylinder motorbike with a couple of non-standard parts, this video included some points I hadnt considered. Cheers!

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 .

Isn't cfm really the important number?

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?

So answer=volume

cool content but damm could we get a better mic

The BEST ARE MADE IN USA 🇺🇸 😍

OMG! I saw the thumbnail and my jaw hit the floor! Go Liv! 😎👍 You rock, girl! 🤘

I wonder if Steve was involved with the first Brownfield heads. I had some of the very first casting. When I ran them on my 287 SBC Gasser engine. The first time out, the head bolts were going down in the castings and the valve seats were going up. So I called Brownfield they wanted them back, ok, I sent them back, they welded them up and CHARGED me to fix them. When I got them back I burnell hardness tested them , they were dead soft. After proving to them how BAD they were they sent me a new set. I SOLD them and kept running my Iron turbo heads, that flowed as well as the brownfield head.

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

That head game is 👌

Alix and Dennis fanboy chiming in LOL

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

What a joke

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.

This video does not even address valve train geometry. At all. The axis of the rocker needs to be 90° to the valve stem at half lift. On a pedestal rocker or shaft, that's done by shimming the rockers fulcrum height relative to the head. THEN you can select the proper length pushrod. Or you can just bolt crap together. Either way 😆.

I have had a little experience around Brownfield heads as well as Hamburg Mopar heads. And a couple of locally cast heads here in Oz. Not very watertight and inconsistent in brinnel. A bit like some China heads today! I saw VobbleVagen Scat stuff,, average. But on recomendations of others I am using their premium off the shelf crank and rods. I know there is better but my budget and power levels do not warrant spending more. I am still talking near 600 347 Ford.

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.

Are these heads only for hellcats or can i put the 224 on my 392 scat.

Best heads for the money. Have to spend thousands more to get a little more performance. They will go 4.90s with nitrous in a 2900 pound car. Cost ALOT More to go a little faster. Ask me how I know.

Sorry I didnt hear a single word.

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

If I remember correctly he worked for AFR

Iightning lash

I remember back when we found brownfield heads in the wild. I thought sperlin and him joined and created afr.whete did the foundry go?

Well… I’m in love now…😮

We love you Steve.

The best of the best!

Every time Steve blinks he is calculating horsepower & torque values. Each blink is a 20 to 25% increase . It’s dependent on cubic inch & rpm range.

Legend has it …. That they have done MRI’s - X-Ray’s & ultrasounds of Steve’s head. The Antikythera Mechanism is inside his skull ☠️

This video is a mess! Didn't anyone from the AFR tech department double check this? The basic idea is solid, but with a bolt down non adjustable rocker all you are doing is adjusting lifter preload. You have to raise or lower the fulcrum (middle) point along with push rod length to make the pattern change like she was hoping. Most adjustable rocker systems use the stud and polylocks to do this, but I have seen a shim system for certain bolt down rockers like a 5.0 or Vw bug that can be used to raise the fulcrum.

That was actually an easier to understand video than most I've seen. 👍

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 ]

These are the guys that I want to build my 363 boost ready sbf