highest 5.3 head compression?
09-11-2002, 10:55 PM
#1
TECH Fanatic
Thread Starter
Join Date: Mar 2002
Location: Chicago Land
Posts: 1,390
Likes: 0
Received 0 Likes
on
0 Posts
highest 5.3 head compression? Wouldnt the highest compression you can run safely on pump gas be what they are at. The 5.3 heads bump compression up a point and stock is 10 so wouldnt these be 11:1. I figure possibly i could get them milled 30 still though but i am not sure. Let me know if getting them milled would still be a safe move for 93 octane or will this create detonation a WOT. Also still needs to beable to get in street races <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />
09-12-2002, 10:07 PM
#4
TECH Fanatic
Thread Starter
Join Date: Mar 2002
Location: Chicago Land
Posts: 1,390
Likes: 0
Received 0 Likes
on
0 Posts
Re: highest 5.3 head compression? So the higher the compression the higher the cam. Sounds good cause i was looking into getting a big lumpy stick.
09-12-2002, 11:02 PM
#6
TECH Fanatic
Thread Starter
Join Date: Mar 2002
Location: Chicago Land
Posts: 1,390
Likes: 0
Received 0 Likes
on
0 Posts
Re: highest 5.3 head compression? 12 has a nice ring to it but i am not sure how out of control the cam would have to be to run that compression.
09-12-2002, 11:15 PM
#7
Re: highest 5.3 head compression? Huge cam.. Take my advice.. It is not worth the trouble. You will not see that much of a difference from 11.3:1 to 12.1:1 unless you are running race gas... I would stick with what everyone else is doing.. Look how big of a cam Fireball is running to bleed off 11.8:1...
Trending Topics
09-13-2002, 12:23 AM
#8
TECH Fanatic
Thread Starter
Join Date: Mar 2002
Location: Chicago Land
Posts: 1,390
Likes: 0
Received 0 Likes
on
0 Posts
Re: highest 5.3 head compression? Yeah i wasnt sure how big it would take. So it looks like i will just get the 5.3 heads milled 30 maybe only 15. Not sure. Any more comments on this set up.
09-13-2002, 06:29 AM
#9
TECH Senior Member
iTrader: (21)
Join Date: Nov 2001
Location: Cecil County Raceway!!!
Posts: 8,484
Likes: 0
Received 0 Likes
on
0 Posts
Re: highest 5.3 head compression? I'm sure I could get away with a smaller cam...
with 11.8:1, I'm still leary on 93 octane laying into it in 4th gear.
<small>[ September 13, 2002, 06:29 AM: Message edited by: Fireball ]</small>
with 11.8:1, I'm still leary on 93 octane laying into it in 4th gear.
<small>[ September 13, 2002, 06:29 AM: Message edited by: Fireball ]</small>
09-13-2002, 10:23 AM
#10
Re: highest 5.3 head compression? .02
Also weight, gear and cooling will have an impact.
With the bigger SLP radiator, the JPR EWP using reverse flow cooling, low temp stat, lower fan settings and 4.10's, might be able to get away with a little more compression with the same cam, than without.
Also weight, gear and cooling will have an impact.
With the bigger SLP radiator, the JPR EWP using reverse flow cooling, low temp stat, lower fan settings and 4.10's, might be able to get away with a little more compression with the same cam, than without.
