PRC Stage 2.5 Heads P/V Clearance
06-25-2005, 03:53 AM
#1
Launching!
Thread Starter
Join Date: May 2004
Location: Philly
Posts: 231
Likes: 0
Received 0 Likes
on
0 Posts
PRC Stage 2.5 Heads P/V Clearance I'm just trying to determine which cam I can go with that will not have P/V clearance issues with these heads. I originally wanted to go with a Futural F13, but I am also considering MTI's stealth cam II. I'd like to be over 400 for both HP and TQ, but I do not want to cut my pistons.
06-25-2005, 04:51 PM
#7
11 Second Club
iTrader: (13)
Join Date: Jun 2002
Location: The Confederacy
Posts: 3,063
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by HavATampa
What gasket and milling are you guys running with the 5.3's and the FM13? Did you get your heads milled at all SsZero? I don't want to flycut either and have a set of Tea's.
Last edited by gomer; 06-25-2005 at 05:38 PM.
Trending Topics
06-25-2005, 09:36 PM
#9
Launching!
Thread Starter
Join Date: May 2004
Location: Philly
Posts: 231
Likes: 0
Received 0 Likes
on
0 Posts
My heads are not being milled at all. They're the same 5.3L truck heads that TEA uses, CNCed and hand finished. Hey is 112+2 the best grind for the F13 or would it be better 112+4, which is the "off the shelf" spec. I'm not too hung up on peak power, I want a broad power and torque curve that I can feel.
06-25-2005, 10:13 PM
#10
The +4 is probably the one you want. The torque kicks in a little sooner than the +2 and the power peaks a little sooner. Probably will want the earlier torque for street use. Have you talked to Futural about how long will it take get one these? I am seriously thinking about swapping my TSP 225 for one since I have the heads off. 
06-26-2005, 12:37 AM
#11
Launching!
Thread Starter
Join Date: May 2004
Location: Philly
Posts: 231
Likes: 0
Received 0 Likes
on
0 Posts
Yeah the main reason I like the F13 rather than the F14 is for its TQ curve. The F14 gives better peak HP, but not that much more.
I did not know there was a wait on these, but then again my heads won't be ready for at least another 2 weeks and I'm waiting on a few other parts too. Also need a 12-bolt so I'm in no rush. I'm hoping to have this done by the end of July at the latest...then time to race some bikes for $$$.
I did not know there was a wait on these, but then again my heads won't be ready for at least another 2 weeks and I'm waiting on a few other parts too. Also need a 12-bolt so I'm in no rush. I'm hoping to have this done by the end of July at the latest...then time to race some bikes for $$$.
06-26-2005, 08:29 AM
#12
I'm not sure if there is a wait on the F13's right now or not. I do know they are recovering from a huge GP on those cams and with the popularity Futural has on this board and others, I would think they have trouble keeping them in stock. I might call them tomorrow to see. It's a shame, I live 15 miles from their shop and have never dealt with them. I'm about 5 miles from Thunder, but TSP seems to get all my business. I'm still debating whether it's worth switching from my TSP 225 or not. What cam are you upgrading from?
I'm still debating whether it's worth switching from my TSP 225 or not. What cam are you upgrading from?
06-26-2005, 01:46 PM
#13
Launching!
Thread Starter
Join Date: May 2004
Location: Philly
Posts: 231
Likes: 0
Received 0 Likes
on
0 Posts
I have a TR 230/224 on 111 LSA. It's an OK cam, lopes a lot...probably would be good for turbo or SC. Man I can't believe I missed another GP on the F13 cams.
