f13 absolutespeed 2.5 5.3's ptv clearence
08-24-2005, 02:54 PM
#1
TECH Apprentice
Thread Starter
iTrader: (6)
Join Date: Jul 2004
Location: mayville,mi
Posts: 331
Likes: 0
Received 0 Likes
on
0 Posts
f13 absolutespeed 2.5 5.3's ptv clearence f13 absolutespeed 2.5 5.3's ptv clearence. does any one have any experience with this combo? the heads are unmilled and ill be using stock gm gaskets
08-24-2005, 04:34 PM
#3
TECH Apprentice
Thread Starter
iTrader: (6)
Join Date: Jul 2004
Location: mayville,mi
Posts: 331
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by John02SS
I ran that exact combo for awhile. Heads where cut .005 and used the graphite gasket that is .052 thick with no problems at all. 6800 over and over! 
08-24-2005, 08:12 PM
#4
10 Second Club
iTrader: (47)
Join Date: Nov 2001
Location: Pace, FL
Posts: 1,453
Likes: 0
Received 0 Likes
on
0 Posts
No track time, but it made a hair over 450 (can't remember the exact #) and pulled like a freight train on the street! Mine was a 6spd, so yours should just pure nasty at the track!
08-24-2005, 08:30 PM
#5
Launching!
iTrader: (3)
Join Date: Nov 2003
Location: Florida
Posts: 218
Likes: 0
Received 0 Likes
on
0 Posts
AS heads are good, i wish jay was still around, i wanna know his secret to such well done cylinder heads, everyone running his heads make awesome power, and the flow numbers are real - legit on other local flow benchs.. this guy was doing somthing right id like to see a pair of 205s done by him
08-24-2005, 08:32 PM
#6
TECH Fanatic
iTrader: (1)
Join Date: Jun 2003
Location: Mount Dora, Fla
Posts: 1,876
Likes: 0
Received 0 Likes
on
0 Posts
I've got AS stage 2 5.3L heads. With a CC 228/230 .588/.591 112 lsa I only had .042 clearance. I flycut, only valve float or an over rev, from disaster. Most people just don't realize how close they are to nuking their engine with medium to larger cams. Sad thing is that most guys never really consider how close P/V contact is these days.
08-26-2005, 09:26 AM
#7
TECH Apprentice
Thread Starter
iTrader: (6)
Join Date: Jul 2004
Location: mayville,mi
Posts: 331
Likes: 0
Received 0 Likes
on
0 Posts
thanks guys for your help.i went to get the cam last night i bought it used with only dyno time.well i looked at the cam and it is an f14 on a 112 so i guess that will be goin in instead of the f13,but for 250 the price couldnt be beat.i think i'll still be ok as far as ptv clearence? ill call alan to make sure.as soon as i get it in ill post up my dyno times and get some track times im hoping to hit 117-120 trap speeds so say a prayer for me,thanks again
Trending Topics
08-26-2005, 11:44 AM
#8
Originally Posted by bad0211secws6
thanks guys for your help.i went to get the cam last night i bought it used with only dyno time.well i looked at the cam and it is an f14 on a 112 so i guess that will be goin in instead of the f13,but for 250 the price couldnt be beat.i think i'll still be ok as far as ptv clearence? ill call alan to make sure.as soon as i get it in ill post up my dyno times and get some track times im hoping to hit 117-120 trap speeds so say a prayer for me,thanks again
Try 120-123 trap speeds.
Also check the p/v before you start the car and be sure it is okay.
08-26-2005, 12:30 PM
#10
Check out this thread.
https://ls1tech.com/forums/generation-iii-internal-engine/370954-head-install-tonight-how-measure-pv.html
https://ls1tech.com/forums/generation-iii-internal-engine/370954-head-install-tonight-how-measure-pv.html
Last edited by JZ'sTA; 08-26-2005 at 07:26 PM.
