Zach79Z

iTrader: (21)

I was pretty set on the torquer v2 cam but i changed my mind to the 228r cause ive seen some good numbers from it. But im not sure which heads would be better. 2.5 LS6 Heads or 2.5 5.3l heads? I have a 01 Z28 A4 with 3.73 gears and a catback, but when the heads and cam go in it will have a YankSS3600 stall and a F.A.S.T set-up and longtubes. It will be a almost daily driver, most likely every other day. Also it will later have a 100 shot on it. Which heads would be best?

navyblueSS

iTrader: (1)

I am going with the Stage 2.5 5.3 heads on mine along with a Fast 92 setup. I talked to John at Texas Speed and he recommended the 5.3 heads. My car made 400rwhp cam only. I am hoping for 430-440rwhp after the heads, Fast 92, and u/d pulley. I hope to have everything ordered by the end of the week. I will post results once I get everything installed and retuned.

Zach79Z

iTrader: (21)

cool man thanks for the help. Ill keep an eye out for your numbers

SlayerMaro

iTrader: (3)

As long as you're sure you won't want boost at a later point, go with the 5.3's. You'll get the extra compression.

I chose the LS6 heads to keep the stock compression in case I decide to boost later. Swapping in a blower cam will be cheaper than buying new heads.

Zach79Z

iTrader: (21)

Im sure i dont want boost but itll have a little bit of spray

TXZ28LS1

iTrader: (5)

im looking at some 5.3 heads and LS6 heads too. i hear that 5.3 yields better compression. im not sure what that actually does for performance. but i always thought LS6 heads made more power though.

Zach79Z

iTrader: (21)

The smaller combustion chambers in the 5.3l is why they bump up compression and i guess better air flow in the ls6 is why they are thought to make more power?

Fifedogg

iTrader: (15)

I am a big fan of the LS6 heads but the 5.3's will probably net you more power due to more velocity and compression.

Zach79Z

iTrader: (21)

I mianly wanna go with 5.3s cause of budget

00MaroonZ28

iTrader: (3)

A friend of mine has the stg 2 5.3 heads with a similar cam like yours and puts down well over 400 to the wheel with a stock LS1 intake.

Zach79Z

iTrader: (21)

Some good numbers!

TORCHD 02 TA

iTrader: (39)

I have a 228/232 cam, stock H/I and i was thinking of going with stage 2 243 (ls6) heads.. I have been hearing some good things about them..

how many CCs are the ls6 heads and 5.3 heads? I need to bump up my DCR to get more TQ.

my car cam only (same cam above) put down 405/375.. SAE was 415/378

5_02ls1

iTrader: (20)

there a guy on our local forum,well he is a member here to ...anyway in an 01 a4 car he made 430 rwhp not sure on his tq though....he has the 228r and 2.5 5.3s....this was done through a ls6 manifold and ported stock tb....that cam makes amazing power...

GT Griller

iTrader: (8)

I would do 5.3's

Zach79Z

iTrader: (21)

After a few money problems a decided to go cam only with stock ported heads. Im going with the vrx5 cam and ported 241's

ive alrready got the cam, vavle springs and timing chain and am ording parts as i can

Jason 98 TA

iTrader: (4)

The 228R camshaft works really well with the PRC Stage 2.5 5.3l heads. We have a set amount of milling we can do for that camshaft that has worked really well for us. I have a complete engine dyno testing results sheet with the PRC Stage 2.5 5.3l heads & 228R Camshaft. Give us a call Monday & we can fax you dyno results from that exact combo with unmilled heads.

TORCHD 02 TA

iTrader: (39)

I was thinking going with LS6 ( Ported Stage 2 243 Heads)... How well would those go with my cam? 228/232 .588/.595 110+4? I need to get my DCR to 8.5 - 8.7????

Or would the 5.3 heads be good for my application?