Black97

I got 383 shortblock with Lunati crankshaft,Oliver Billet Rods,Diamond Pistons.. I spent $$$ but I guess it worth.. Anyway there are 12 weeks back order for AFR heads ,so I placed the order asap.. First I ordered 195cc ,but then after some suggestions I changed it to 210cc.. Now I hear some other opinions that 210cc for race cars,not for daily drives ,and I'm totally confused.. Its my daily car and M6 transmission.. I don't want to have a trouble after spending tons of $$$..

Please its very important, any suggestion will be great..

Deniz

raymond mckinney

iTrader: (4)

What kinda of power you shoot'n for? what compression what cam?

Black97

I want ~~530-550bhp (at flywheel without nitrous) 11:1 compression.. If it wasn't my daily car I would go with Turbo or Supercharger,but it is and I will use 150-200 wet shot nitrous for that reason it will be 114 lsa.. But I don't know yet what will be the duration & lifts.. (I guess 233-239 & 585/585 lifts)..

My rotating assembly is top notch quality ,and I spent lots of $$$ so I want to get really strong engine.. The only problem is head choice.. On the AFR's website its written "for highly modified streetcars" for 210cc heads.. Not only race cars.. I'm so confused..

Snow Dog

iTrader: (3)

id stay with the 210s they will support the 383 better and allow you to possibly upgrade. this is out of the box that im referring to. if you start porting the heads first then i think the 195s will be quite capable of supporting that engine. personally if it was my money id buy the 210s and just drop them right on.

Black97

Also there are another problem:
-The 210cc's springs have 220lbs on seat.. Its too much for hydrolic roller camshaft.. Its good for solid roller cam. So I should chose a little less pressure springs. Such as 140-160lbs. I chosed ,but its 1.530"O.D. and titanium retainers are 1.550"O.D. can be there any problem because of this size differences???

pillagenburn

iTrader: (2)

what about AFR 210's on a 350 or 355?

hydraulic roller of course with a small-ish, high lift cam (comp XE of some sort)

would this work ok?

Black97

Thank you very much for a long post "Fast Caddie" ..! Yeah for a 383ci 210cc is better than 195cc .. will be small 233-239 (114 lsa) cam?? I will use 200 wet shot nitrous so I should keep lsa at 114.. Should I raise duration? and what lift would be better for 210cc flowss?

TwoFast4Lv

iTrader: (8)

BTW guys we just got a set of 210s in and they were only 199cc. What a freaking rip off! We had to send them back out to get re-ported correctly

n2oblkz

iTrader: (1)

That is why I bought my AFR LT4 210's bare to have them ported by a good porter. I have heard nothing good about AFR's CNC porting if your are going for all out perfomance.

I am going to use AFR 210's on my force inducted 357 LT1.

97M6Formula

iTrader: (6)

as for the cam I think I have a pretty good nitrous grind which is 236/245 .569/.580 114 lsa... You should take advantage of those heads and bottom end and do a nice big cam I still have ported stock castings and my cam will be more agressive than yours...if you are going to have someone good port the heads im sure they can match a cam up for ya too.. Otherwise you could always call comp and see what they say

Black97

Oh tell truth this is a joke right????? I'm in back order now ,and they told me there are 12 weeks back order..!! After 12 weeks if I get 199cc heads I can go there!!!

Black97

AFR is a top notch quality company how could they do such a mistake TwoFast4Lv ????

n2oblkz

iTrader: (1)

I would say that they don't go "all out" on their in house port jobs and hog them out as much as they can go. They may also be trying to keep the velocity up too. Just a guess.

chris77

i just had a 396 built with AFR 195cc LT4 heads at 12.5 compression, i have not started it yet, but the engine builder said it will make about 520/540. i will let you know. but i would say to stay with the 195cc, if it is an everyday driver you dont want the hassel of dealing with a solid roller cam.

Black97

I agreed with you ,but then I decided to go with 210cc because if I will pay $$$ it should worth for it.. I will go with 210cc ,but with Hydrolic roller cam,not solid roller.. So my car still will a daily car.. (I should change high pressure springs because 210cc Heads are prepared for solid roller cam..)

TwoFast4Lv

iTrader: (8)

Well the bummer part is you are paying for the name

195-210 are the same casting with different port programs. we paid for the 210 program and got the 199 program. They changed there programs is the word we got. one is a 200 and the other is a 208.

We waited over three months for the heads to come in. You see AFR does NOT have a Propritary LT casting. they have there regular casting welded then Machine them for LT motors. So they wait till they get so many orders then send them off to be welded.

we ordered ours in November and got them in March.

Great heads do not get me wrong but if you really want them to perform get them ported before you put them on the car

BTW I would get a completed set not a bare set. the bare set need SO much taken out it is not funny If you get the set we did then you have most of the material removed and just need the port reconfigured.

OH YEAHH you can have the Hydrolic springs put in at no charge..we did
Good luck all!

Black97

Thank you for this long reply Ellis! I ordered (Not me Paul from Thunderracing) 210cc Competition Heads (set) After I read your story I can't trust them..So should we check the heads when I get it right?? (measure)

TwoFast4Lv

iTrader: (8)

Yes we checked them when they got here. It actually worked out good for us as they did not flow that great either and would have never supported the 396 we are putting them on to the target 7,000 Rpms

They will now