Results 1 to 6 of 6

AFR heads

This is a discussion on AFR heads within the External Engine forums, part of the LSx Technical Help Section category; hi guys i have 99 z28 A4 whith long tube headers and MTI air box + ZO6 intake manifold i`m ...

  1. #1
    Junior Member feras's Avatar
    Join Date
    Feb 2006
    Location
    KUWAIT
    Age
    35
    Posts
    37

    RED
    1999 Z28

    Cool AFR heads

    hi guys

    i have 99 z28 A4 whith long tube headers and MTI air box + ZO6 intake manifold

    i`m looking for change the stock cylinder heads and some boddy told me to go with AFR heads

    i want ask about this heads is it the best heads for an LS1 .?

    and wich type or size should i buy .?

    and what about cam is it comming with heads or not .?

    if i need to change cam whic kind is better

    my car now has 310hp _ 335 torq

    i need to go up more thane 500 hp what should i do or chang ..?

    if i buy this hedas with a big cam can i get more than 500 hp

    thanks

  2. #2
    Impounded MikeSomething's Avatar
    Join Date
    Dec 2005
    Location
    Old Bridge, NJ
    Age
    37
    Posts
    1,420

    Pewter Metallic
    '00 Z/28

    AFR's are a pretty well known brand, but there are others.
    I don't think you'll be in the range of 500hp w/ just heads & a cam.
    If you do throw on a cam, make sure it breathes well (headers & intake). Don't have each thing done one at a time. Have the motor out and do it all in one shot. Check out the "Internal & External Engine" Sections of this forum. I'd also recommend doing all forged internals & you'll probably have a taste for nitrous at that point.

  3. #3
    Senior Member rajiv1998's Avatar
    Join Date
    Sep 2006
    Location
    New Jersey
    Age
    30
    Posts
    1,489

    Black
    1998 Pontiac Trans Am

    AFR make some of the best heads. There a bit pricey, but we all no going fast aint always cheap

  4. #4
    Junior Member feras's Avatar
    Join Date
    Feb 2006
    Location
    KUWAIT
    Age
    35
    Posts
    37

    RED
    1999 Z28

    thanks my friend

    but really i`m confused when i check the sites there are alot of zise and number of heads
    so i want to ask u which size or number should i buy for cames and heads

  5. #5
    Exalted Cyclops 67CamaroRSSS's Avatar
    Join Date
    Feb 2007
    Location
    San Diego, CA
    Posts
    5,824

    2002 Z28 A4 NBM
    Sadly now demodded :(

    Quote Originally Posted by feras View Post
    thanks my friend

    but really i`m confused when i check the sites there are alot of zise and number of heads
    so i want to ask u which size or number should i buy for cames and heads
    The number of the AFR head (195, 225 etc.) states the airflow in cc's of that particular head. Higher airflow means more power if you add suitable components to complement the heads capabilities (i.e, bigger cam with more duration and a better exhaust system). Also, the stock rotating assembly is somewhat RPM limited due to the rods and pistons. As has been stated above forged components will win out every time especially if you go FI or N2O.

  6. #6
    Senior Member mrr23's Avatar
    Join Date
    Jul 2005
    Location
    orlando, fl
    Posts
    7,134

    dark bowling green
    2000 corvette

    the AFR heads are a good buy for what they do. here's a dyno test that vinci did. completely stock 2003 corvette only swapped te heads. stock tune. picked up 37 rwhp. i haven't seen any other head manufacturer try this type of test.

    http://vincihighperformance.com/BECK...CT%20PAGE.HTML

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Replies: 0
    Last Post: 03-16-2011, 10:30 AM
  2. Replies: 0
    Last Post: 02-04-2011, 03:00 PM
  3. AFR heads VS. Ported and beefed up stock heads.
    By hutcher04 in forum Internal Engine
    Replies: 10
    Last Post: 03-14-2010, 09:27 AM
  4. New Heads or Port/Polish Stock Heads?
    By Black02LS1 in forum Internal Engine
    Replies: 32
    Last Post: 06-23-2007, 12:29 AM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •