new heads big difference?
02-07-2007, 04:34 PM
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new heads big difference? do new heads full porting and polish job really make a big difference or no? i justg baught a set of stock ones and i want to get it done but befor i spend 1200 on the job i want make sure im not just waisting money on something thats not going to help much...let me know thanks
02-07-2007, 07:28 PM
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30-50 hp.for $1200.00. Sounds worth while to me!! Make sure you have them ported by a person familiar with LS heads. Look into Texas Speed. I think they will do it for $1100.00.
02-07-2007, 09:12 PM
#4
I once sprayed a 50hp nitrous jet with my NX Nitrous system. Although you could feel more power, it was not that much more than stock.
Save your money for a larger short block 408 then bolt on your stock unported heads for a better power improvement
Save your money for a larger short block 408 then bolt on your stock unported heads for a better power improvement
02-07-2007, 09:55 PM
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Lets see here,
TFS 215 heads - $2400
Ported FAST 90 - $1300
Total = $3700
Est. HP = 70
$52.85 per 1 hp
vs.
Forged 347 - $3000
N20 - $1500
Total = $4500
Est. HP = 200
$22.50 per 1 hp
TFS 215 heads - $2400
Ported FAST 90 - $1300
Total = $3700
Est. HP = 70
$52.85 per 1 hp
vs.
Forged 347 - $3000
N20 - $1500
Total = $4500
Est. HP = 200
$22.50 per 1 hp