Are Larger valves worth any more HP?
08-08-2005, 08:38 PM
#1
9 Second Club
Thread Starter
Join Date: Aug 2003
Location: Raleigh NC
Posts: 604
Likes: 0
Received 0 Likes
on
0 Posts
Are Larger valves worth any more HP? Time to freshen up my heads. Blew a gasket. I have a set of Patriot stage II 5.3s with a 2.02" intake and a 1.57" exhaust. Thinking bout going up to a Ferrea 2.055" intake and a 1.600" exhaust. The cam that I'm running is a F13 with all the bolt-ons. Will have the heads worked up a little bit more. Car made 426RWHP last dyno pull. Any advice is welcome. Thanks.
08-08-2005, 08:43 PM
#2
TECH Addict
iTrader: (16)
Join Date: Jul 2004
Location: Nevada, TX
Posts: 2,218
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by Charles Cyrus
Time to freshen up my heads. Blew a gasket. I have a set of Patriot stage II 5.3s with a 2.02" intake and a 1.57" exhaust. Thinking bout going up to a Ferrea 2.055" intake and a 1.600" exhaust. The cam that I'm running is a F13 with all the bolt-ons. Will have the heads worked up a little bit more. Car made 426RWHP last dyno pull. Any advice is welcome. Thanks.
Brandon
08-08-2005, 08:46 PM
#3
Staging Lane
Join Date: Jun 2005
Posts: 62
Likes: 0
Received 0 Likes
on
0 Posts
hmm... well i'm sure they'll give you more power, but is it really worth the cost for ANOTHER set of valves and more port work? Just estimating, but lets say $300 for the valves? and like $500 for the porting. Thats $800, plus you'll probably have to get it tuned again, so thats another $100-$200. I guess you may get another 20-30 rwhp out of it though.
08-09-2005, 04:13 PM
#5
TECH Addict
iTrader: (16)
Join Date: Jul 2004
Location: Nevada, TX
Posts: 2,218
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by menlatin
hmm... well i'm sure they'll give you more power, but is it really worth the cost for ANOTHER set of valves and more port work? Just estimating, but lets say $300 for the valves? and like $500 for the porting. Thats $800, plus you'll probably have to get it tuned again, so thats another $100-$200. I guess you may get another 20-30 rwhp out of it though.
. I would be no means expect 30whp or more. More like 15whp if there is room for improvement in the bowls.Brandon
