need help with head gasket choice

Reply Subscribe

Thread Tools

Search this Thread

06-17-2010, 11:29 PM

00 black ss

TECH Enthusiast

Thread Starter

iTrader: (9)

Join Date: Sep 2008

Location: Long Island, NY

Posts: 609

Likes: 0

Received 1 Like on 1 Post

need help with head gasket choice

i have a 383 ls1 with -7cc dish pistons and approx a 68cc head. i would like my compression ratio to be 11.25 to 1. what gasket should i use to get it up to that?

Reply Like

06-17-2010, 11:34 PM

ABQ99TA

10 Second Club

iTrader: (17)

Join Date: Aug 2005

Posts: 620

Likes: 0

Received 0 Likes on 0 Posts

http://www.angelfire.com/fl/procrastination/motor.html

Reply Like

06-18-2010, 03:52 PM

Sales4@Texas-Speed

LS1TECH & Trucks Sponsor

iTrader: (4)

Join Date: Jan 2007

Posts: 1,768

Likes: 0

Received 7 Likes on 7 Posts

With a .040" a -7cc piston and a 68cc chamber you are at 10.4:1. If you want to get to 11.25:1 you will have to mill your heads to 62cc chamber.

Reply Like

06-21-2010, 09:35 PM

00 black ss

TECH Enthusiast

Thread Starter

iTrader: (9)

Join Date: Sep 2008

Location: Long Island, NY

Posts: 609

Likes: 0

Received 1 Like on 1 Post

i have a .45 gasket. what cc shuld my heads be to get to 11.25? and is it safe to have the compression ratio on 93 octane

Reply Like

06-24-2010, 09:29 PM

00 black ss

TECH Enthusiast

Thread Starter

iTrader: (9)

Join Date: Sep 2008

Location: Long Island, NY

Posts: 609

Likes: 0

Received 1 Like on 1 Post

bump... anybody know what it would be with that gasket?

Reply Like

Reply Subscribe