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ROCKER SHAFT TORQUE VALUES??? #1306430 09/18/12 03:03 PM 09/18/12 03:03 PM
Joined: Sep 2009 Posts: 2,325 Clinton Twp... north of Deetro... L Labratt OP Good Ol Randy B!
Labratt OP Good Ol Randy B! L Joined: Sep 2009 Posts: 2,325 Clinton Twp... north of Deetro...	With MP chromed rocker shafts..and Crane rockers..on Edelbrock RPM heads..what should I torque the shaft attaching bolts(and 2 nuts)to? I've been going to my MP engine manual,and torquing them to 25 ft. lbs. Should I continue with that spec? Thanks in advance for your thoughts! Randy B. 7384616-DSC01329(Small).JPG (97 downloads) Last edited by Labratt; 09/18/12 03:05 PM.

Re: ROCKER SHAFT TORQUE VALUES??? [Re: Labratt] #1306431 09/18/12 03:05 PM 09/18/12 03:05 PM
Joined: Dec 2009 Posts: 20,647 in a cattle trailer down by th... G Guitar Jones Paddle faster! I hear banjo music!
Guitar Jones Paddle faster! I hear banjo music! G Joined: Dec 2009 Posts: 20,647 in a cattle trailer down by th...	BB I'm assuming? A 3/8 grade 8 bolt can take 35 lbs/ft. If it's just a standard grade 5 then 25 is enough. "Follow me the wise man said, but he walked behind" '92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion. '74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case. Rear disc and hydroboost conversion. 2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.

Re: ROCKER SHAFT TORQUE VALUES??? [Re: Labratt] #1306432 09/18/12 03:07 PM 09/18/12 03:07 PM
Joined: Aug 2003 Posts: 43,241 Bend,OR USA C Cab_Burge I Win
Cab_Burge I Win C Joined: Aug 2003 Posts: 43,241 Bend,OR USA	Quote: With MP chromed rocker shafts..and Crane rockers..on Edelbrock RPM heads..what should I torque the shaft attaching bolts(and 2 nuts)to? I've been going to my MP engine manual,and torquing them to 25 ft. lbs. Should I continue with that spec? Thanks in advance for your thoughts! Randy B. I use 23 ft. lbs One motor has Harland Sharps with 680 lbs open pressure and the other Indy SR heads has single shaft T&D with 750 lbs + open pressures, no problems with those torque down at 23 ft. lbs. I do use a inch lb torque wrench on them, not a Ft. Lb wrench I do warm the motor and retorque them at least once before getting after the motor on the street, dyno or at the track Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)

Re: ROCKER SHAFT TORQUE VALUES??? [Re: Guitar Jones] #1306433 09/18/12 03:09 PM 09/18/12 03:09 PM
Joined: Sep 2009 Posts: 2,325 Clinton Twp... north of Deetro... L Labratt OP Good Ol Randy B!
Labratt OP Good Ol Randy B! L Joined: Sep 2009 Posts: 2,325 Clinton Twp... north of Deetro...	Yes,Stephen..440. The bolts are ARP Grade 8 hardware. Wouldn't use anything else! Thanks for the info!

Re: ROCKER SHAFT TORQUE VALUES??? [Re: Cab_Burge] #1306434 09/18/12 03:14 PM 09/18/12 03:14 PM
Joined: Sep 2009 Posts: 2,325 Clinton Twp... north of Deetro... L Labratt OP Good Ol Randy B!
Labratt OP Good Ol Randy B! L Joined: Sep 2009 Posts: 2,325 Clinton Twp... north of Deetro...	Thanks Cab! ....so ya' torque them to 276 in. lbs.? I just bought a new in. lb. Torque wrench last week...maybe use that!

Re: ROCKER SHAFT TORQUE VALUES??? [Re: Labratt] #1306435 09/18/12 03:16 PM 09/18/12 03:16 PM
Joined: Aug 2003 Posts: 43,241 Bend,OR USA C Cab_Burge I Win
Cab_Burge I Win C Joined: Aug 2003 Posts: 43,241 Bend,OR USA	Randy, I have oblonged several sets of good Mopar and hard chromed Speed Pro rocker shafts torqueing them at 35 lbs The new harden steel half round holddowns instead of the stock stamp steel hold downs may help not crushing the ends of the rocker shafts but I don't chance it after ruining several shafts Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)

Re: ROCKER SHAFT TORQUE VALUES??? [Re: Cab_Burge] #1306436 09/18/12 05:20 PM 09/18/12 05:20 PM
Joined: Sep 2009 Posts: 2,325 Clinton Twp... north of Deetro... L Labratt OP Good Ol Randy B!
Labratt OP Good Ol Randy B! L Joined: Sep 2009 Posts: 2,325 Clinton Twp... north of Deetro...	Cab..good reason to use a lower torque value! I just realized that my NEW torque wrench maxes out at 250 in. lbs. I visually inspected the shafts a short while ago..and they look fine. I'll just tighten them..in 2 increments,starting in the middle..then both ends..then the 2 nuts. This time,I think I'll use the in. lb. torque wrench..torque to 180 in. lbs. and torque to 25 ft. lbs. with my other torque wrench. Thanks for the info!

Re: ROCKER SHAFT TORQUE VALUES??? [Re: Labratt] #1306437 09/18/12 05:36 PM 09/18/12 05:36 PM
Joined: Jun 2003 Posts: 52,972 Romeo MI MR_P_BODY Master
MR_P_BODY Master Joined: Jun 2003 Posts: 52,972 Romeo MI	Randy, check the ball adjuster at the PR to make sure they arent touching at full lift.. cant see with the grease on it

Re: ROCKER SHAFT TORQUE VALUES??? [Re: MR_P_BODY] #1306438 09/18/12 05:52 PM 09/18/12 05:52 PM
Joined: Sep 2009 Posts: 2,325 Clinton Twp... north of Deetro... L Labratt OP Good Ol Randy B!
Labratt OP Good Ol Randy B! L Joined: Sep 2009 Posts: 2,325 Clinton Twp... north of Deetro...	Mike..that's an old pic..with the OEM pushrods. I don't use that Red Line assembly lube any more. I've been using the ARP moly lube. Thanks for the tip!..I will check that with the new Trends installed!

Re: ROCKER SHAFT TORQUE VALUES??? [Re: Labratt] #1306439 09/18/12 07:08 PM 09/18/12 07:08 PM
Joined: Nov 2003 Posts: 7,348 Mt.Vernon ,Ohio VernMotor master
VernMotor master Joined: Nov 2003 Posts: 7,348 Mt.Vernon ,Ohio	Yes I do them at 25 ft lb

Re: ROCKER SHAFT TORQUE VALUES??? [Re: VernMotor] #1306440 09/18/12 10:11 PM 09/18/12 10:11 PM
Joined: Sep 2009 Posts: 2,325 Clinton Twp... north of Deetro... L Labratt OP Good Ol Randy B!
Labratt OP Good Ol Randy B! L Joined: Sep 2009 Posts: 2,325 Clinton Twp... north of Deetro...	Thanks Vern!

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