HitmanLS1

iTrader: (16)

Is there a big difference. I have a 98 z-28 a4. I want to do a head and cam swap. I dont want to spend a ton of money on it though. Which head and cam will be the best. I want a cam that runs good on hp but really wakes the car up on nos. Which head will i beneifit from the most. I was thinking the 5.3 because they where ported already. I could be wrong so thats why I am asking? Any info would be helpful thanks guys.:happy:

NemeSS

iTrader: (127)

need more info on 5.3 ported heads,
but i would just go with stock 243

SMOKNSS

iTrader: (3)

You mean NITROUS? NOS is a brand!!!! You're gonna have to search for your cam and do some about your car or your needs. As for heads if your can get the 5.3 heads cheaper get them, they will flow more.

02*C5

iTrader: (1)

Really there is nothing cheap about nitrous and and if you do go cheap (ie small shot) then your wasting your time. I don't mean to be a *****, but save your money. I have seen so many guys do that go cheap for power and then in the long run it gets expensive, a hell of a lot more expensive. If your young you have nothing but time. Do it right the first time it saves you money and a head ache.

Blk_Ws6

iTrader: (4)

i'd say 5.3's

mikemunoz

I WOULD LIKE TO KNOW THIS TO. I COULD GET 5.3 HEADS FOT 150 BUCKS IS THAT A GOOD DEAL. IS IT WORTH P&P, MILLING, PUTTING 2.02 AND 1.60 VALVE AND 3 ANGLE VALVE JOB ON 5.3 HEADS...... HELP ME OUT

HitmanLS1

iTrader: (16)

I kno its more than 5 guys that know about or have ran 5.3 heads.

black01_WS6

iTrader: (13)

the ported 5.3's will outflow the stock 243's. lots of guys use both and have good results.

Who did the porting on the 5.3 heads in question?

SLOC5LS6

If you want a cam that loves spray, go with the MS3

HitmanLS1

iTrader: (16)

A guy hand ported them. Is $500 to much for them. How far will it bump up my compression.

HitmanLS1

iTrader: (16)

Will the MS3 work good on motor. I want a cam that runs good on motor but flies on nitrous.

SLOC5LS6

if you decide to P&P them, you might as well just buy some new ones that are already ported. you'll come out cheaper in the end

SLOC5LS6

Porting them will not bump up your compression, however, milling them will bump up your compression.

bad72c10

iTrader: (12)

I think he is referring to the smaller chamber volume of a 5.3L head bumping his compression not th porting itself.

black01_WS6

iTrader: (13)

since they are hand ported ask for the flow sheets on them or ask the guy to get them tested. There are a lot of guys that "port" that don't really work that much. Numbers don't lie if they are done independently

HitmanLS1

iTrader: (16)

Yea that what i was talking about.