engine modifications? - JeepForum.com
Search  
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back JeepForum.com > General Technical Discussions > Engines & Drivetrain > engine modifications?

Stainless Steel Door Hinge PinsPoly Door Hinge BushingsFS: 2007-2013 Jeep Wrangler "HALO" Angel Eye Kit

Reply
Unread 07-27-2004, 10:27 PM   #1
oldschool8604
Registered User
 
Join Date: Aug 2003
Location: Canada
Posts: 269
engine modifications?

What are some good, or quick, or cheap modifications i can do to my Wagoneer engine. Its an 89 waggy...4.0L, I6...

How much does (each) a Port and Polish, and a Bore Increase cost?

__________________
89' Wagoneer Limited - The ShaGGiN' WaGGiN'
Blue Jeep Club Member #86

http://www.cardomain.com/id/oldschool8604
oldschool8604 is offline   Reply With Quote
Unread 07-30-2004, 02:38 AM   #2
oldschool8604
Registered User
 
Join Date: Aug 2003
Location: Canada
Posts: 269
Someone told me that a port and polish costs about 600...but they didnt know about bore increase...they said something like 1000...i dunno tho, im not too sure
__________________
89' Wagoneer Limited - The ShaGGiN' WaGGiN'
Blue Jeep Club Member #86

http://www.cardomain.com/id/oldschool8604
oldschool8604 is offline   Reply With Quote
Unread 07-30-2004, 06:47 AM   #3
75SV1
Registered User
 
Join Date: Sep 2003
Posts: 1,054
Quote:
Originally Posted by oldschool8604
Someone told me that a port and polish costs about 600...but they didnt know about bore increase...they said something like 1000...i dunno tho, im not too sure
Might check this website: http://www.jeep4.0performance.4mg.com/
Also, you have the old Renix injection system. The throttle body is different than the newer ones (HOs). Check the website for a DIY port and polish. I think its 8-12 hours for a port and polish. You could just do a port match, polish the short side radius and round off the valve stem bosses.
You can also use the Mopar performance head gasket and shave .010 off your head to bump up the compression to about 9.1.
Tom
75SV1 is offline   Reply With Quote
Reply
Thread Tools


Suggested Threads





Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. JeepForum.com is not in any way associated with Jeep or the Chrysler Corp.