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We have Engo 10k Synthetic IN STOCK!!! Hurry while supplieSpartan Locker Promo Running now @ ROCKRIDGE 4WD plus FREESPARTAN LOCKERS are on sale BIG TIME at ROCKRIDGE 4WD!

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Unread 03-18-2002, 11:47 AM   #1
jp7
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Join Date: Jan 2002
Location: tx
Posts: 14
258or304

I have a few questions if I can get some answeres or opions,thanks.I have both a 258 and a 304 to install in a cj-7 should I put a intake,carb,and headers on the 304 or do the same on the 258 and do a head swap?which one would give the best performance on the road and dirt,how much does the 304 weigh what does the 258 weigh?I thank I've got a rear 44 with a det.locker and 4-11 gears wont know til weekend for sure.or blow it all off and go with a 350? please help with your thoughts.thanks!!!!!!!!!

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Unread 03-18-2002, 12:46 PM   #2
Bulletproofcj7
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Join Date: Jan 2002
Location: Western Massachusetts
Posts: 286
If you go to the search option on this board and type 304 you will find numerous discussions on your question.
Personally I built a 304 that works great for me.
__________________
1982 cj7. Frame off. shell valley kevlar body, stainless hinges, Bestop seats and supertop, KC titanium lights, Homemade swing out tire carrier with spare front wheel bearings/hub, Built 304,DUI,Edelbrock shorty headers with dual stainless 21/2 tubes into incynerator cans 21/4 dumped out the back,Edelbrock 600cfm, performer intake and cam, Borgeson lower column, Centerforce clutch, NV-4500, Dana 300 w/custom built twin stick, Homade 1/4" steel skid plate, 2.5 soft ride w/ 1" shackle lift, 33x12.5 mtr's. Stainless fuel and brake lines, Braided hoses. more...
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Unread 03-19-2002, 08:32 AM   #3
4wheeler4CJ
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Join Date: Mar 2002
Location: Southern Rhode Island
Posts: 1,527
258 or 304 is personal preference.

I had a 258 in my last CJ that I built with Clifford Performance products (390 Holley 4-BBL on a 4-BBL Clifford Water Heated Aluminum Intake, Dual Exhaust Clifford Headers mated to a 2 1/2" custom exhaust run all the way out the back, and Mild Duration Cam). It was a great performer and great daily driver, and when I went to a gas station, people used to ask me if it was a 350 in there, and they S**T when I said it was an inline 6 It was fun and different engine that many people don't see everyday, so it gets attention.

My next Jeep listed below in my signature has a 360, and I have yet to drive it around to experience it. My next frame-up build will be getting a 401.

So, basically, do whatever you feel like and whatever you think will be most fun. a 350 swap will be more costly due to the adapters you will need, etc., and you can get plenty of performance out of a 304, if you decide to go V8.
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Unread 03-19-2002, 09:56 AM   #4
jrejle
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Join Date: Mar 2002
Location: Houston, Texas
Posts: 34
I have a 1974 CJ5 w/ a stock 258 and I just filled up and got 17 miles to the gallon and thats w/ points and a carter one barrell carb! The only plans I have for it "may" be a switch to electronic ignition and a weber carb. I think the 258 has plenty of torque and I would rather put the money into the x fer case, lockers, and other drivetrain mods. If you want to go fast buy a muscle car!

Jim
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