Generation III Internal Engine - AFR heads?
dnm12
11-23-2006, 10:30 PM
So I am looking to keep it legal in cali and I am putting stock exhaust back on other then cat back. But I want the best deal on a set of AFR heads I am thinking the 205 i am hoping with my cam and a nice set a heads i could run my 11's with possiable rebuild or overhaul of the motor in the next 50-75K.
-My question is what is the best price on a set of AFR heads assembled what kind of spring set up should I run currently I am running a PRC dual spring set up for my lift of .581 so all inputs would be great and keep in mind emissions legal (meaning I couldn't go outrageous with some stroker combo in CA and still pass smog so no point in 225's or I am wrong. This is something I don't want to purchase twice)
TIA!!!!!!!!!!!
eamador11
11-23-2006, 11:15 PM
I got mine from TSP 2182.00 shipped fully assembled back in 2004 :)
dnm12
11-24-2006, 11:26 PM
any other help????
dnm12
11-25-2006, 11:51 AM
Any help???????????
vettenuts
11-25-2006, 03:15 PM
When I looked at the AFR heads last year, all of the vendors were actually very close in price. So really, it comes down to availability and service/support after the sale. I would select who to buy them from based on this as the cost differences are going to be minor. You might catch a sale around Christmas too if you keep your eye open.
dnm12
11-25-2006, 03:58 PM
so basically there is no question but to go with AFR huh?
vettenuts
11-25-2006, 05:27 PM
I believe AFR is the only CARB 50 state legal head, if that is what you are asking.
BriancWS6
11-25-2006, 05:41 PM
Like someone already stated, the prices are all pretty close. Call up whoever you like to deal with and tell them what you want. Since your wanting to stay emissions legal, you won't be able to run a large duration cam, so make sure you get yours milled to 59-62cc for a bump in CR to make up some power loss from the smaller bumpstick.
Sean Collins
11-25-2006, 06:59 PM
So I am looking to keep it legal in cali and I am putting stock exhaust back on other then cat back. But I want the best deal on a set of AFR heads I am thinking the 205 i am hoping with my cam and a nice set a heads i could run my 11's with possiable rebuild or overhaul of the motor in the next 50-75K.
-My question is what is the best price on a set of AFR heads assembled what kind of spring set up should I run currently I am running a PRC dual spring set up for my lift of .581 so all inputs would be great and keep in mind emissions legal (meaning I couldn't go outrageous with some stroker combo in CA and still pass smog so no point in 225's or I am wrong. This is something I don't want to purchase twice)
TIA!!!!!!!!!!!
Are they still using those infered testers on exit ramps and is the IM240 still in use ??? I assume you have to pass a smog test on a dynomometer if the IM240 test is what you are subjected to.
Easiet route to 11's for you is a nitrous sytem beucase it does not mess with any of the emissions system components nets a big gain in power and does not affect the smog test capacity of the vehicle. either that or a SC kit with a 50state cert. Most any camshaft out there will cuase a fial on a IM240 with the exception of the just barely warmer then stock grinds. the thunder 224 116 lsa with 585 lift with and extra cat behind the y-pipe might clean it up enough to pass. But i think thats about it. I don't think you'll gain enough with the heads of any manufacturer but the AFR 205 would be the best choice in this situation.
1997bird
11-25-2006, 08:30 PM
Jegs seems to have a pretty good priceing on their AFR heads. My jobber cost on most of the AFR heads barely beats prices from Jegs. They also seem to have a pretty good stocking situation on them.
dnm12
11-26-2006, 02:20 PM
should I go with a milled set to bump up the CR well I am at it?? what gaskets?
1997bird
11-26-2006, 02:42 PM
With the stock GM MLS head gaskets and a 62 cc combution chamber at zero deck will give you 10.69:1 compression. The stock GM MLS head gaskets are .056" compressed. Mr Gasket Co has a set of MLS gaskets that are .054" compressed. I also know that Cometic has a multiple amount of different thickness. The most common is .040" compressed. The cost is where your decision comes into play. GM offers a head gasket kit that has head gaskets, int gaskets, head bolts, valve cover gaskets, and exhaust manifold/header gaskets for about $120. Where as you will spend that same amount on just head gaskets by themselves from the other companies. The advantage that the aftermaket companies have is a stronger gasket for forced induction (superchargers, turbo's, and N2O). But for your situation I think that the GM gasket set would be the best way to go and then have your heads milled for more compression.
orangeapeel
11-26-2006, 03:25 PM
any other help????
Leave california...asap! :jest:
dnm12
11-26-2006, 07:24 PM
With the stock GM MLS head gaskets and a 62 cc combution chamber at zero deck will give you 10.69:1 compression. The stock GM MLS head gaskets are .056" compressed. Mr Gasket Co has a set of MLS gaskets that are .054" compressed. I also know that Cometic has a multiple amount of different thickness. The most common is .040" compressed. The cost is where your decision comes into play. GM offers a head gasket kit that has head gaskets, int gaskets, head bolts, valve cover gaskets, and exhaust manifold/header gaskets for about $120. Where as you will spend that same amount on just head gaskets by themselves from the other companies. The advantage that the aftermaket companies have is a stronger gasket for forced induction (superchargers, turbo's, and N2O). But for your situation I think that the GM gasket set would be the best way to go and then have your heads milled for more compression.
that is what I have been thinking so $120 for head gasket kit? and get them milled
Steve Bryant
11-26-2006, 08:14 PM
In my opinion, the most critical issue for passing the smog test will be the overlap of your cam (you want something pretty wide like the ZO6 cam or some of the Lingenfelter cams with 118 or so degrees of lobe separation angle). Also, you will need to have functional catalytic converters. You could have a pretty aggressive tune as long as it stays stochometric through about 55 kPa.
This is just my opinion.
Steve
dnm12
11-26-2006, 08:56 PM
good stuff I figure that 114 lsa is pretty good and with a good tune I think it will be smoggable with the AFR 205 heads with .024" milling
dnm12
11-28-2006, 06:57 PM
should i get new lifters?
vettenuts
11-29-2006, 04:59 AM
How many miles?
dnm12
11-29-2006, 09:51 AM
110k on the motor
dnm12
11-30-2006, 10:29 AM
biggity bump thinking about comp R lifters or should I bother?