3.7 engine rebuild - Jeep Garage - Jeep Forum

Go Back   Jeep Garage - Jeep Forum > Jeep Platform Discussion > Grand Cherokee - WK > Engine Performance/Intake/Exhaust

Join Jeep Garage Today
Reply
 
Thread Tools Display Modes
 
  #1  
Old 02-22-2016, 02:31 PM
Member
 
Join Date: Sep 2015
Posts: 11
Thanks: 1
Thanked 0 Times in 0 Posts
Rep Power: 512
BigRedJeepWk is on a distinguished road
3.7 engine rebuild

Hello, I've been thinking about getting my 3.7 rebuilt. While looking at kits I noticed you can buy bigger pistons, Rods, main bearings, etc. Would they fit the block without modifications? Or would some boring need to be done?
Here's the website for a better look at what I'm talking about.
-Thanks

2006 Jeep Grand Cherokee 3.7L V6 Engine Rebuild Kit - EK1106 -10

Reply With Quote
Sponsored Links
Advertisement
 
  #2  
Old 02-22-2016, 04:59 PM
Senior Member
My Jeep: 2006 5.7L WK
 
Join Date: Dec 2009
Location: Home of the Mountain Blue Bird
Posts: 1,303
Thanks: 0
Thanked 68 Times in 58 Posts
Rep Power: 156089
jeepgcoman has a reputation beyond reputejeepgcoman has a reputation beyond reputejeepgcoman has a reputation beyond reputejeepgcoman has a reputation beyond reputejeepgcoman has a reputation beyond reputejeepgcoman has a reputation beyond reputejeepgcoman has a reputation beyond reputejeepgcoman has a reputation beyond reputejeepgcoman has a reputation beyond reputejeepgcoman has a reputation beyond reputejeepgcoman has a reputation beyond repute
Re: 3.7 engine rebuild

Those are standard engine rebuild kits. If your bores need to be cleaned up, you'll need to get the oversized pistons, which ones depends on how much it needs to be bored to clean up the cylinder walls. Same goes for the crankshaft. If the main and/or rod journals are scored/out of round, they will have to be turned. Depending on how much will determine which oversize bearings you'll need. The only way you'll be able to tell all this is to tear it down and mic (micrometer) and inspect everything. If there is no appreciable wear, you'll be lucky and be able to use all standard size pistons and bearings. If the pistons aren't bad, you can also save money by reusing them.
__________________
05 LX/RT & 06 WK/GCO, modded similarly, MDS "ON" Light, Vortex Gens, Debadged, DashHawk, BT Catch Can, SRT CAI W/Add Air Inlet, K&N Filter, Sonnax Trans Press Booster, SC Tuner W/Adv Trans Tuning App, DS Tuner, Cust tube headers w/3 in. catback, Bilsteins, SRT frt/rear bumpers, Eibach SRT Lwr Sprgs & Sways, FRI Sidewinder Cam Adv 2*, 6.1 valvetrain, SLP 25% UD Pulley, BBK 90mm TB, SOS Coils/.060 plug gaps. 20 in. SRT Reps.
Reply With Quote
  #3  
Old 02-29-2016, 11:50 PM
Member
 
Join Date: Jul 2015
Posts: 85
Thanks: 0
Thanked 5 Times in 5 Posts
Rep Power: 642
thzpcs is on a distinguished road
Re: 3.7 engine rebuild

May I ask why you're doing a rebuild?
Reply With Quote
  #4  
Old 06-01-2016, 03:44 PM
Member
My Jeep: 2005 3.7L WK
 
Join Date: Dec 2014
Location: Fairborn, OH (Outside Dayton)
Posts: 31
Thanks: 16
Thanked 2 Times in 2 Posts
Rep Power: 804
jisfalt88 is on a distinguished road
Re: 3.7 engine rebuild

AirRam Website has some decent kits as well. Updated CNC Heads I would highly suggest.. I was going to rebuild mine, ended up buying a cleaner engine because even though I changed my oil like you're supposed to. my '05 WK blew a rocker right through the valve cover at only 110,000mi. The oil just gets too hot in these dang things, causes a ton of sludge build up.
Reply With Quote
Reply

Tags
build

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
4.7 HO engine vs heads rebuild recommendations? WJ Fan Engine Performance/Intake/Exhaust 3 06-18-2012 10:42 PM
Wj front diff rebuild help Jeff_Jeske Troubleshooting/Problems 10 02-11-2011 11:01 PM
Water In transmission after rebuild with mods. 05HemiGcherokee Troubleshooting/Problems Discussion 4 06-29-2010 01:32 PM
Axle rebuild question psyco6string Grand Cherokee - WK 2 02-11-2010 06:26 PM
Red Eagle Power Pack - Transmission Rebuild 555ctsv Grand Cherokee - WK 11 01-21-2010 04:52 PM

Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 08:48 PM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Copyright 2012 - JeepGarage.Org
The Jeep Grand Cherokee Owners Community

JeepGarage.org is in no way associated with or endorsed by FCA US LLC. Chrysler, Dodge, Jeep, Ram, Mopar and SRT are registered trademarks of FCA US LLC.