SDPC Tech Tips: Head bolts vs. studs

This week's video goes over our range of cylinder head fasteners; from OEM torque to yield bolts, ARP head bolts and even their head studs. In this time with interruptions in supply, understanding what you can use and where could save you some downtime while still having some peace of mind!
#SDPC #SDPCRaceshop #ARP #TechsualHealing

[@adambryant3546]

Great video!! & as you said.. "do it right the 1st time won't have to do it again".. & plan for the future by upgrading to stud to handle more power later!! Well said!!

[@tomaskey6844]

I do not like using torque to yield bolts. I know by the book it is right and I’ve not had one fail yet but I still prefer the click(or beep), of a torque wrench.

[@Mrdubomb]

Very informative, I want to freshen up a northstar motor (2008) and go from an M11 to M12 head bolt. I dont like the idea of inserts because of the close proximity to the water jacket, the stud kits available cost a fortune and seem overkill for a stock motor. It hasnt had the threads pull out-its just a preventative measure. What advice do you have and what torque would I need for the increased diameter on something like this?
Thanks in advance.

[@s3rics213]

Can’t wait to get my motor over to you guys soon. May need to do a collaboration hopefully.

[@martygrajeda3457]

Love the videos 👍

[@martygrajeda3457]

Can studs work on a 4th gen f body? Without having to drop the motor out to pull the heads off?

[@johnnieburge4997]

I purchased the ARP Studs for my LT4 To LT5 upgrade, but the package came with four small skinny studs & bolts. What are they for?

[@abeclarkatp2595]

Thanks!

[@Poaf-1]

Is 90 ft lbs seem like a lot for an 2005 6.0 I got arp2000 head bolts ? All the same size bolts lengths ect..

[@angelo_giachetti]

Another advantage in a stud is clamping dynamic. Bolts pull on the block causing bore distortion. Studs minimize this distortion.
Guys using Ford 5.0 HO blocks benefit from studs bc the block is so weak.

[@thisisyourcaptainspeaking2259]

Blocks distort differently and thus may or may not need torque plates for the honing process. The selected bolts or studs should be used during torque plate honing.
I cringe at the thought of swapping bolts for studs willy-nilly, at least a $60k engine should be machined and built correctly.
As for an old clunker hone and go beater that originally came with magic bolts, I reach for grade-8.

[@Adikxx]

Hi, could i please ask if the final clamping torque will needed to be changed when replacing factory head bolts to studs? For instance if the final torque setting for factory bolts was 50 Nm will it be the same for head studs/nuts ? I would really appreciate your take on this
Regards

[@Sdpartscenter]

The manufacturer will have updated torque requirements for their bolts or studs. If you're using newer casting heads, ARP has changed their torque settings for those as well as people were pulling the threads out of the block with the old torque numbers.

[@Adikxx]

@@Sdpartscenter thank you

[@Louie88]

Thank you!! Great vid. Take a deep breath though lol !!

[@antoniomccurine7886]

😂😂

[@garymaya1767]

I’ll use stock. Gm makes great parts. If you need to seal the cylinder for leakage get fire rings installed. Stock gm bolts get stronger over time.

[@I_like_turtles_67]

Not better quality than ARP.

[@mssulehria]

Hi, I found 2 bolts and two studs on my car's throttle body attached to the engine. Why not all 4 bolts or studs? Can you please explain

[@montecarlo6.0turbo]

Should watch sloppy mechanics

[@belltocher]

Dont use studs on a bbc unless you know what your getting into