stevecritt

iTrader: (3)

I'm doing another rebuild on my car and I don't want to use my stock porters any more. I'm looking at buying a set of AFR's either 210 or 227. It will be on a 383. I was wondering how well these would work for a weekend street car? I figured the 227 on a 383 would take out my bottom end. What do you y'all think?

Also why sorta numbers can guys putdown with these heads? I'm switching to a carb motor.

Thanks.

bowtienut

iTrader: (1)

You have no business considering considering AFR heads for a "weekend street car". They would only make sense if you're doing a max effort strip car where 500 rwhp just won't do. You can't just bolt out-of-the-box AFR's on and make big power; you need to put a lot of money into them before they'll do you any good.
Simpler, easier, cheaper, reliable recipes are already out there for anything a street car can hope to put to the pavement.
Do you have any goals for what you want the car to do? That would help.

therabidweasel

iTrader: (5)

wow, no disrespect intended but I completely disagree. My mamofied afrs shipped yesterday. If you love your car, want the best, and want heads that you could put on your mantle go ahead.

It a an expensive path, but it depends on the op's needs. I recommend you pm Tony mamo and see what he can do for .

96capricemgr

iTrader: (1)

So you have heads in the mail but haven't actually tested them yet and have slips to back up your opinion?
The guy you just argued with has a 10 second NA stock shortblock Impala with ported stock castings.

Let's see who is worth listening too, the guy with the spectacular result, or the guy with parts in the mail?

Plus what Pat said was you have to spend a fair amount on porting them which you are saying you had done.

stumprrp

iTrader: (2)

why cant anyone answer a question on this board without giving reason why the OP is wrong? he didnt ask about what other options there are, he asked about AFR heads. no disrespect to anyone but cmon guys.

i'm no expert but i think a set of cnc'd 210s would work great on that car. not to mention i think 10 of the 15 fastest ltx cars run AFR heads. given those are heavily built cars, but its still food for thought.

BIGCAT7274

whats your goals? what parts did you use in the short block? 210's on a 383 with a good cam and some tuning you can make some good power.

96capricemgr

iTrader: (1)

So you are arguing the same parts used on the fastest power adders pure racecars is what is appropriate for a "weekend street car". Not really the same parts though because they wont be ported by the same people.

If we were going to push parts based on fastest racecar then the AI 215 Trickflow should be the choice because that is something any of us can go place an order and get the same exact CNC porting and it is used on several very fast cars.

joelster

210's will cost substantially less than 227's. The 227's will require offset shaft rockers or offset stud rockers and a girdle. Shaft rockers are around $1050+ no way around that. If you run offset stud rockers with the 227's you will have to periodically check them.

stevecritt

iTrader: (3)

Hmm... I guess I got more then I bargained for. I just want the best out of the box heads I can get and afr seem to be the ones. I would like to make the 500whp mark. And I'm switching to a carb single plane motor. Honestly i just want to know how these heads will preform on the motor. I'm not interested in any thing stock ported at ALL what so ever. But thanks for the input. I know A lot of guys stand by AI and LE. Just flat out don't want stock head no matter what. and I have a forged bottom end.

Puck

iTrader: (17)

Comp 210s would be fine for a weekend warrior 383, and like stated you can keep a stock style valvetrain and not have to dump big money on exotic valvetrain parts.

I see you are going carb'd with a single plane so the computer limitations wont be an issue, and if you are running a hydrualic roller then you won't need any further work on them.

500rwhp will still need a healthy cam and some RPMs though, so keep that in mind if its a daily driver.

96capricemgr

iTrader: (1)

You want 500rwhp without porting bet you want it hydraulic too.

You have some unrealistic expectations there.

Here is the highest dyoing NA hydraulic setup I know of.
https://ls1tech.com/forums/lt1-lt4-m...o-results.html

bowtienut

iTrader: (1)

Since it appears there are no real performance objectives, just go ahead and buy the 210's and slap them on it. You'll play hell getting 500rwhp out of it though.

BIGCAT7274

its doable. a solid roller would be easier.

MikeFSKSpeed

iTrader: (37)

Go with the 210's The 210's on my Gen I SBC just made 578 HP with a smallish solid roller and will be street driven ALOT!

Let me know if you have questions or need pricing

joelster

stevecritt

iTrader: (3)

Hey thanks for some real advice! My budget is plenty. 15k, so I'm willing to spend some.

I'm sorry not meaning to insult anyone intelligence, It's just that if you don't have anything constructive to say and you ask what someone is looking for there is no need to bash, if that is your way I would kindly appreciate it if you did not post, Thank you. (non smart *** tone)

But yes I am also looking at switching to a solid roller cam. maybe even bump up the crank to make it a 396, I really don't know what is the best route to go. But i do know that I would like to keep it N/A and this is def not my dd AT ALL. Just want to put around town with as close to 500na as i can get.

joelster

A 383 will cost a little less than a 396 and make very similar power. A single plane intake for an sbc can easily be converted to LT1 bolt pattern for $200-$300 at any competent machine shop. A solid roller can be built with whatever specs you want from a company like LSMENG.com, whatever firing order, base circle you need. Turnaround time is about 2-2.5 weeks. A really good bolt-in oil pan for strokers is the Milodon 30909 pan. It will clear any stroker crank you put in it. How much rpm are you looking to turn? Anything over 7k and i'd want shaft rockers for piece of mind and that would lend itslef to the 227cc head.

ElkySS

iTrader: (6)

my 396 with afr 195cc street heads (ported by a local porter to 205cc) made 502rwhp with a ported LT4 intake on a mustang dyno with an hr cam. i daily drive it too. if you think afrs are only for max effort builds, ur crazy

duh

iTrader: (16)

Elkt, if you could pm me some details on your setup it would be much appreciated as I'm in the planning stages and haven't quite decided where to go, but you gave me really intrigued.

Dave357LT1

I like how Jolster explained the cost diff. Insted of pissing on the guys parade. I swear on this board if anyone else goes with a out of the box idea (non a.i.) many drops a duce on the idea. Yes there are some fast ported stock head cars but alot of people dont want stock heads.