up_yours_7

I can get a 4.6 for $2000 so what would be total cost for a full rebuild and blower?

Jas5

only issue with 4.6L is that you need a $5-6k supercharger kit to equal or surpass the power of the stock 5.0L...

4.6L with s/c kit: 400-450 "safe" whp
5.0L with intake/tune only: 400 very safe whp

obviously anytime you slap a blower onto a stock motor there is risk, but on this forum, very few people have blown their motors when staying in that safe range. I'm only pushing around 400whp on my motor so it should last forever.

I'd personally do some shopping, if you can get a low mileage 4.6L (like 30-50k miles) for $2k, then supercharge it for $5k... versus getting a 5.0L for $7k... i'd go with the 5.0L

Or if you found a 4.6L + blower for a couple grand cheaper than 5.0L, you might want the 4.6

apples and oranges.. we arent going to do the shopping for you bro

up_yours_7

Well I plan on if I do a 4.6 is full rebuild so cams heads maybe bottom end stuff then a blower.

Jas5

go for it.. i can only imagine that a used 4.6 will be FAR cheaper than a newer 5.0 (i mean how many are totalled?) and you can easily spend that extra money building up the motor and eventually putting a blower on it. After doing forged internals, skies the limit with power.. my paxton 2200SL ($6k new) can support up to 900hp with a cheap pulley swap.. other blowers such as roush M90 is a bit cheaper but can only support up to 450whp as far as i know

edit: if you build the motor up, do cams, ported heads, headers, full exhaust, tune, etc.. you can easily push 350+whp which will be plenty until you supercharge it

up_yours_7

I think I want to get to at least 500hp

05REDAUTO

I too love the look of the 05-09. I would trade in your V6 on a low milage 05-09 GT and you have half of your problems taken care of already. Then add a blower.

Weather Man

There have been some F/I'd 4.6 mustangs going for stupid cheap in the S197forum classified. If you want to swap just because you like the challenge, 4.6. From what I have read, the 5.0 swap is not as easy peasy as made out.

908ssp

A full DOB build will set you back less than $4000 and makes an easy 500rwhp. If you have the bottom end to support it you can make more. For more than 600rwhp you're probably better off with a bigger blower than the M122. Don't even consider the M90 those were design for 3.8l V6 engines.