Swapology

New Topic

216 topics

Topics

Replies

Views

Last post

89 Jeep 258 With 4.0 Head Build Update!

Last post by mpgMike « April 4th, 2025, 7:30 pm
Replies: 2
by H3lping » April 4th, 2025, 2:12 pm

2 Replies

2327 Views

Last post by mpgMike
April 4th, 2025, 7:30 pm
1983 CJ8/04 WJ Resto Mod

Last post by akadeutsch « March 10th, 2025, 3:24 pm
Replies: 2
by akadeutsch » March 6th, 2025, 11:02 am

2 Replies

6004 Views

Last post by akadeutsch
March 10th, 2025, 3:24 pm
74 Scout ii 4.0 to amc 727

Last post by mpgMike « February 20th, 2025, 6:30 pm
Replies: 2
by 326Firefighter » April 27th, 2024, 7:51 am

2 Replies

10979 Views

Last post by mpgMike
February 20th, 2025, 6:30 pm
2.5 - 4.(0-7) swap, 97' wrangler

Last post by Jgr.jeeper « February 20th, 2025, 10:46 am
Replies: 2
by Jgr.jeeper » February 19th, 2025, 1:38 pm

2 Replies

2917 Views

Last post by Jgr.jeeper
February 20th, 2025, 10:46 am
4.0 head on 4.2 short block intake and carb options

Last post by mpgMike « February 20th, 2025, 1:12 am
Replies: 3
by H3lping » October 24th, 2023, 1:26 pm

3 Replies

9739 Views

Last post by mpgMike
February 20th, 2025, 1:12 am
TJ BLOCK Interchange

Last post by 2grimjim « May 12th, 2024, 10:33 am
Replies: 3
by Cannonball » January 18th, 2017, 8:13 pm

3 Replies

35421 Views

Last post by 2grimjim
May 12th, 2024, 10:33 am
NP242 input shaft 21 to 23 spline

Last post by TJryder « February 22nd, 2024, 3:23 am
Replies: 1
by TJryder » February 21st, 2024, 5:45 am

1 Replies

8211 Views

Last post by TJryder
February 22nd, 2024, 3:23 am
Factory balancer mount CPS???

Last post by HowieH « January 3rd, 2024, 5:17 pm
Replies: 3
by farna » November 3rd, 2012, 10:43 am

3 Replies

10613 Views

Last post by HowieH
January 3rd, 2024, 5:17 pm
4.6 Stroker Cam selection for CJ-8

Last post by Russ Pottenger « December 6th, 2023, 1:26 pm
Replies: 5
by Crockodotsky » February 16th, 2022, 4:37 pm

5 Replies

12089 Views

Last post by Russ Pottenger
December 6th, 2023, 1:26 pm
4.0 Head work and cam questions for a 4.2

Last post by amcinstaller « October 18th, 2023, 11:14 am
Replies: 5
by H3lping » October 13th, 2023, 12:36 pm

5 Replies

9989 Views

Last post by amcinstaller
October 18th, 2023, 11:14 am
Choice's Choice's

Last post by cstephens85 « August 16th, 2022, 9:22 am
Replies: 1
by lquince » May 4th, 2022, 12:55 am

1 Replies

11335 Views

Last post by cstephens85
August 16th, 2022, 9:22 am
3727 crank build possibilities

Last post by Randy Bobandi « July 18th, 2022, 6:45 pm
Replies: 1
by Donerlord719 » July 17th, 2022, 2:55 pm

1 Replies

9366 Views

Last post by Randy Bobandi
July 18th, 2022, 6:45 pm
4.0 head and EFI on a 4.2 block

Last post by Jeep-Power « July 7th, 2022, 3:29 am
Replies: 187
by Jeep-Power » February 13th, 2008, 8:05 pm
1

…

9

10

11

12

13
187 Replies

458787 Views

Last post by Jeep-Power
July 7th, 2022, 3:29 am
Stroke a 4.0L or Fuel Inject a 4.2L

Last post by GreenYJ « May 23rd, 2022, 7:30 pm
Replies: 3
by jfriesen » February 16th, 2022, 11:20 am

3 Replies

10740 Views

Last post by GreenYJ
May 23rd, 2022, 7:30 pm
4.0 swap running issues

Last post by amcinstaller « April 10th, 2022, 2:37 pm

by amcinstaller » April 10th, 2022, 2:37 pm

0 Replies

8886 Views

Last post by amcinstaller
April 10th, 2022, 2:37 pm
Mopar efi v belt harmonic balancer on a 4.2 long snout crank will it fit a 1991 4.0

Last post by IH 392 « March 3rd, 2022, 10:24 pm
Replies: 1
by BillyC » March 1st, 2022, 2:00 pm

1 Replies

9708 Views

Last post by IH 392
March 3rd, 2022, 10:24 pm
CJ7 stroker install, motor mounts don't seem to fit

Last post by jeeppoor « January 28th, 2022, 9:11 am
Replies: 1
by Buds Garage » January 22nd, 2022, 11:56 am

1 Replies

9492 Views

Last post by jeeppoor
January 28th, 2022, 9:11 am
4.0 w/ Fuel Pump On Rail - Primer Pump?

Last post by Neuner « October 25th, 2021, 12:09 pm

by Neuner » October 25th, 2021, 12:09 pm

0 Replies

9565 Views

Last post by Neuner
October 25th, 2021, 12:09 pm
4.0 with 4.2 crank

Last post by 275/350 I-6 « September 17th, 2021, 7:19 am
Replies: 1
by Billy » September 7th, 2021, 4:14 pm

1 Replies

10768 Views

Last post by 275/350 I-6
September 17th, 2021, 7:19 am
4L Bell Housing Bolt Patterns

Last post by IH 392 « August 23rd, 2021, 8:54 pm
Replies: 2
by Randy Bobandi » December 22nd, 2020, 9:43 am

2 Replies

14513 Views

Last post by IH 392
August 23rd, 2021, 8:54 pm
4.2 harmonic balancer

Last post by Azhunter « August 18th, 2021, 5:32 pm
Replies: 4
by Shrek » June 18th, 2021, 8:41 am

4 Replies

12339 Views

Last post by Azhunter
August 18th, 2021, 5:32 pm
Minimal Wiring Project

Last post by rlinares40 « June 18th, 2021, 10:02 am
Replies: 9
by rlinares40 » January 16th, 2021, 5:52 pm

9 Replies

15837 Views

Last post by rlinares40
June 18th, 2021, 10:02 am
jeep cj 258 to 4.0 wiring harness

Last post by rlinares40 « June 18th, 2021, 9:56 am
Replies: 1
by jepn98 » May 9th, 2021, 4:52 pm

1 Replies

9956 Views

Last post by rlinares40
June 18th, 2021, 9:56 am
0331 head to... what?

Last post by Russ Pottenger « April 10th, 2021, 1:25 pm
Replies: 2
by derf » January 6th, 2021, 12:05 pm

2 Replies

12897 Views

Last post by Russ Pottenger
April 10th, 2021, 1:25 pm
1979 4.2L 258 Upgrade options?

Last post by bnelson « January 20th, 2021, 8:08 am
Replies: 5
by kegwalker » January 14th, 2021, 5:54 pm

5 Replies

15458 Views

Last post by bnelson
January 20th, 2021, 8:08 am
Part Interchangeability Between a 1990 4.2 and 1991 4.0

Last post by Sailboy42 « January 11th, 2021, 7:35 am
Replies: 2
by Sailboy42 » December 28th, 2020, 11:35 am

2 Replies

13614 Views

Last post by Sailboy42
January 11th, 2021, 7:35 am
4.2 Intake on a 4.0 longblock?

Last post by Jgnobles « October 12th, 2020, 2:42 pm
Replies: 8
by crcletrack » October 24th, 2014, 7:01 am

8 Replies

52605 Views

Last post by Jgnobles
October 12th, 2020, 2:42 pm
4.0 to 4.5 question

Last post by Sailboy42 « August 18th, 2020, 9:29 am
Replies: 1
by Blrmkr1 » May 23rd, 2019, 12:12 pm

1 Replies

35247 Views

Last post by Sailboy42
August 18th, 2020, 9:29 am
Pilot bearing for 258 crank matched up to 98 AX-15?

Last post by Xtultegra « July 9th, 2020, 12:11 am
Replies: 2
by Sharnick » June 4th, 2018, 8:45 pm

2 Replies

32538 Views

Last post by Xtultegra
July 9th, 2020, 12:11 am
4.7 stroker in zj with 42re flexplate issues

Last post by 98zjstroker « May 10th, 2020, 3:33 pm
Replies: 1
by 98zjstroker » May 10th, 2020, 8:40 am

1 Replies

27917 Views

Last post by 98zjstroker
May 10th, 2020, 3:33 pm
Rod question

Last post by Russ Pottenger « April 27th, 2020, 11:03 am
Replies: 1
by Macfly » March 25th, 2020, 12:21 am

1 Replies

28731 Views

Last post by Russ Pottenger
April 27th, 2020, 11:03 am
258 to 4.5 swap

Last post by chris1977 « January 30th, 2020, 1:13 am
Replies: 2
by chris1977 » January 29th, 2020, 12:21 am

2 Replies

30680 Views

Last post by chris1977
January 30th, 2020, 1:13 am
XJ and Liberty NP242 Compatibility

Last post by whaleinafishbowl « October 17th, 2019, 9:51 am
Replies: 1
by TJryder » August 16th, 2019, 8:44 am

1 Replies

31102 Views

Last post by whaleinafishbowl
October 17th, 2019, 9:51 am
Jeep WJ 1994 into XJ 1991

Last post by astjp2 « June 27th, 2019, 5:34 pm
Replies: 1
by TJryder » June 4th, 2019, 12:50 pm

1 Replies

28769 Views

Last post by astjp2
June 27th, 2019, 5:34 pm
4.0 in a 1980 Cherokee (258) - question from Italy

Last post by yuza « June 11th, 2019, 12:47 am
Replies: 1
by yuza » June 4th, 2019, 5:45 am

1 Replies

29587 Views

Last post by yuza
June 11th, 2019, 12:47 am
oil filter without bypass for break in

Last post by astjp2 « June 2nd, 2019, 11:27 pm
Replies: 3
by BeRadicle » September 27th, 2018, 8:23 pm

3 Replies

31214 Views

Last post by astjp2
June 2nd, 2019, 11:27 pm
4.0 in cj5 replacing 258

Last post by astjp2 « June 2nd, 2019, 11:22 pm
Replies: 8
by tdagner » April 25th, 2019, 5:44 am

8 Replies

38365 Views

Last post by astjp2
June 2nd, 2019, 11:22 pm
seeking best power direction with inventory

Last post by Russ Pottenger « March 6th, 2019, 8:59 am
Replies: 6
by Rcactech » February 14th, 2017, 5:45 am

6 Replies

37059 Views

Last post by Russ Pottenger
March 6th, 2019, 8:59 am
4.0/4.6 swap in a CJ7

Last post by McSyd « February 17th, 2019, 5:25 pm

by McSyd » February 17th, 2019, 5:25 pm

0 Replies

28000 Views

Last post by McSyd
February 17th, 2019, 5:25 pm
Throttle body bolt pattern compatibillity

Last post by TJryder « November 2nd, 2018, 11:49 pm
Replies: 2
by TJryder » November 2nd, 2018, 1:49 pm

2 Replies

31280 Views

Last post by TJryder
November 2nd, 2018, 11:49 pm
V-Belt Pulley Options for Saginaw PS Pump w/ 3/4" Shaft

Last post by SkylinesSuck « October 12th, 2018, 5:53 pm
Replies: 3
by Knobbler » September 30th, 2018, 12:02 am

3 Replies

32339 Views

Last post by SkylinesSuck
October 12th, 2018, 5:53 pm
2000 water pump an upgrade to 1991-99?

Last post by BeRadicle « August 19th, 2018, 1:20 pm

by BeRadicle » August 19th, 2018, 1:20 pm

0 Replies

27582 Views

Last post by BeRadicle
August 19th, 2018, 1:20 pm
Main differences 4.0 pre 1999 and pst 2000 block

Last post by TJryder « August 3rd, 2018, 12:26 pm
Replies: 1
by TJryder » July 30th, 2018, 1:30 pm

1 Replies

29223 Views

Last post by TJryder
August 3rd, 2018, 12:26 pm
T176 clutch depth change with stroker swap?

Last post by Turbos10 « June 14th, 2018, 4:27 pm

by Turbos10 » June 14th, 2018, 4:27 pm

0 Replies

28452 Views

Last post by Turbos10
June 14th, 2018, 4:27 pm
can I put my 2000 WJ 4.6(stroked), into a 98 TJ

Last post by akadeutsch « June 10th, 2018, 8:17 am

by akadeutsch » June 10th, 2018, 8:17 am

0 Replies

28451 Views

Last post by akadeutsch
June 10th, 2018, 8:17 am
Can a block bored 30 over still be machined and used for a stroker?

Last post by Russ Pottenger « May 31st, 2018, 8:23 am
Replies: 4
by CJ-8_Jim » June 8th, 2017, 7:14 pm

4 Replies

33903 Views

Last post by Russ Pottenger
May 31st, 2018, 8:23 am
4.7 throttle body on a 4.0 intake

Last post by Russ Pottenger « May 31st, 2018, 8:14 am
Replies: 1
by Moneypit » June 19th, 2017, 12:44 pm

1 Replies

29929 Views

Last post by Russ Pottenger
May 31st, 2018, 8:14 am
Is this a 258?

Last post by Russ Pottenger « May 31st, 2018, 8:08 am
Replies: 8
by dan10101 » July 5th, 2017, 5:17 pm

8 Replies

37727 Views

Last post by Russ Pottenger
May 31st, 2018, 8:08 am
de-stroking the 258

Last post by IH 392 « March 31st, 2018, 11:28 am
Replies: 3
by akadeutsch » March 30th, 2018, 7:32 am

3 Replies

31912 Views

Last post by IH 392
March 31st, 2018, 11:28 am
Identifying 4.2 crankshaft

Last post by Russ Pottenger « March 8th, 2018, 12:18 pm
Replies: 8
by Car Enthusiast » November 16th, 2017, 6:19 am

8 Replies

39902 Views

Last post by Russ Pottenger
March 8th, 2018, 12:18 pm

New Topic

216 topics

Return to Board Index

Who is online

Users browsing this forum: No registered users and 5 guests

Forum permissions

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum