Cylinder head bolts jeep / amc 4,2 liter 258 7/16

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Price: $72.99

Availability: In Stock inventory
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Description

L6 4.2 liter (258) jeep 7/16 thread bolts 7 long 4.5 uhl 7 short 3.750 arp bolts with arp cylinder head washers please check thread sizes before ordering these do not have studs on top that may be needed for valve cover / accessory's for example casting numbers 89330000 we have found that in some cases model 4.2 may use the 1/2 thread bolts

torque is 70 foot pounds done in three steps 30 55 then 70 ft pounds with arp lube included in kit. Cylinder head washer goes inner chamfer side up

# 146-3603

more 258 head bolts

Number of questions: 2

my book (and all the web sites show this) shows 3 step t0 110 ft lbs and because it is in a water jacket l/s front headbolt 3 step to 100 ft lbs with sealer . If I use your head bolts will the 70 lbs be correct for 1984 jeep 4.2 258 engine ?

bdogwm May 25, 2022 11:25 AM

Answers

yes a 84 with 1/2 threaded bolts would be 100 ft pounds but if you have a block that has 7/16 threaded bolt like these or the oem 7/16 bolts the torq is 70

admin63484 May 25, 2022 11:45 AM

Do you carry the double ended cyl head bolts?

thundley December 2, 2016 6:22 PM

Answers

sorry we do not have them

admin63484 December 3, 2016 8:09 AM