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MLS Head Gasket - Better for NON-Torque-Plate Hone? #1321882 10/17/12 03:15 PM 10/17/12 03:15 PM
Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually B BradH OP Taking time off to work on my car
BradH OP Taking time off to work on my car B Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually	Long story short: When my 452 was re-honed, it was NOT done w/ a torque plate. Therefore, would using an MLS head gasket instead of a composition-type head gasket (i.e. Fel-Pro) result in less bore distortion when the heads are installed?

Re: MLS Head Gasket - Better for NON-Torque-Plate Hone? [Re: BradH] #1321883 10/17/12 03:26 PM 10/17/12 03:26 PM
Joined: May 2004 Posts: 12,388 Taxes & Virus's R-US, NY Dragula I Live Here
Dragula I Live Here Joined: May 2004 Posts: 12,388 Taxes & Virus's R-US, NY	No...Not bolting the heads to the block will result in less bore distortion....Bolt a torque plate down to the block and torque it, and at least check it! If outs out a bunch, re-hone it. '70 Cuda,...605 EFI Hemi Street Car (6.20 best pass, 1.33 60ft) https://www.youtube.com/watch?v=WYw6RA-k5Bk (6.25 at 108.75mph from inside car) https://www.youtube.com/watch?v=3zQEb9uxFng (6.25 at 108mph from outside car) https://www.youtube.com/watch?v=JCvfzsC4NgM (9.9) '66 Barracuda AWB Stretched nose Blown 440 Car in build stage '71 Duster Drag Car 400 Low Deck 512 best 6.002 at 115.44mph https://www.youtube.com/watch?v=Znuo3jMUXTk

Re: MLS Head Gasket - Better for NON-Torque-Plate Hone? [Re: Dragula] #1321884 10/17/12 03:30 PM 10/17/12 03:30 PM
Joined: Jul 2012 Posts: 429 Washington skrews mopar
skrews mopar Joined: Jul 2012 Posts: 429 Washington	Quote: No...Not bolting the heads to the block will result in less bore distortion....Bolt a torque plate down to the block and torque it, and at least check it! If outs out a bunch, re-hone it. x2

Re: MLS Head Gasket - Better for NON-Torque-Plate Hone? [Re: skrews] #1321885 10/17/12 03:47 PM 10/17/12 03:47 PM
Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually B BradH OP Taking time off to work on my car
BradH OP Taking time off to work on my car B Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually	Quote: Quote: No...Not bolting the heads to the block will result in less bore distortion....Bolt a torque plate down to the block and torque it, and at least check it! If outs out a bunch, re-hone it. x2 "Long story short" means I'm not going into the history of why this block was re-honed w/o the plate. If it wasn't done then, it's not going to happen now that I'm already reassembling the bottom end. The "new build in progress" 451 on the engine stand a few feet from the 452 has been "done right" in that respect and will be the long-term replacement. I'm simply looking for a way to minimize the bore distortion issue as I put the 452 back together as the interim solution to get the Challenger running again.

Re: MLS Head Gasket - Better for NON-Torque-Plate Hone? [Re: BradH] #1321886 10/17/12 03:57 PM 10/17/12 03:57 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	Its still going to distort the same, so no those gaskets wont change anything

Re: MLS Head Gasket - Better for NON-Torque-Plate Hone? [Re: BradH] #1321887 10/17/12 03:59 PM 10/17/12 03:59 PM
Joined: Nov 2003 Posts: 5,160 Texas dannysbee master
dannysbee master Joined: Nov 2003 Posts: 5,160 Texas	Heads will be torqued the same with ether gasket. Since the fasteners do the majority of the distortion I would say take your pick. Getting old just means you were smarter than some and luckier than others.

Re: MLS Head Gasket - Better for NON-Torque-Plate Hone? [Re: dannysbee] #1321888 10/17/12 04:40 PM 10/17/12 04:40 PM
Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually B BradH OP Taking time off to work on my car
BradH OP Taking time off to work on my car B Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually	OK, let me re-phrase my question after having done some additional research on my own... First, here are links to various articles that specifically mention how MLS head gaskets do actually reduce bore distortion because they distribute the clamping loads better than a composite gasket: http://www.circletrack.com/enginetech/ctrp_1108_racing_head_gaskets/viewall.html www.aera.org/ep/downloads/ep11/EP07-2010_42-48.pdf http://www.popularhotrodding.com/enginem...ng/viewall.html http://www.popularhotrodding.com/enginem...g/photo_13.html http://www.popularhotrodding.com/enginem...g/photo_14.html So, I suppose what I should ask is, given that I already own the correct style of composite head gaskets for my 452, would the additional expense of buying MLS gaskets be justified because they should reduce some of the bore distortion resulting from my block having been re-honed w/o a torque plate? Maybe this is just a pure judgement call, but I was hoping to get some input re: whether this thought makes sense to anyone else.

Re: MLS Head Gasket - Better for NON-Torque-Plate Hone? [Re: BradH] #1321889 10/17/12 05:28 PM 10/17/12 05:28 PM
Joined: Jan 2003 Posts: 6,266 Renton Washington T Triple Threat master
Triple Threat master T Joined: Jan 2003 Posts: 6,266 Renton Washington	Blocks and heads using MLS gaskets are machined/ surfaced with a smoother finish than normal for sealing reasons. If this hasn't been done I would KISS and put it together with the composite gaskets. -Dustin 67 Dart, 9 second, 392" G3 Hemi 68 Barracuda 340 F/SA

Re: MLS Head Gasket - Better for NON-Torque-Plate Hone? [Re: Triple Threat] #1321890 10/18/12 10:15 AM 10/18/12 10:15 AM
Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually B BradH OP Taking time off to work on my car
BradH OP Taking time off to work on my car B Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually	I believe the block & heads surfaces are already smooth enough to use MLS gaskets, so I'm still considering the option. Just not sure if there would really be a benefit for the additional expense.

Re: MLS Head Gasket - Better for NON-Torque-Plate Hone? [Re: BradH] #1321891 10/18/12 10:46 AM 10/18/12 10:46 AM
Joined: Oct 2005 Posts: 8,872 Ontario, Canada S Stanton Don't question me!
Stanton Don't question me! S Joined: Oct 2005 Posts: 8,872 Ontario, Canada	Seems to me that every time someone gives you a sensible reply you come up with another reason to use the MLS gaskets. So I'd suggest you make yourself happy and go ahead and use them.

Re: MLS Head Gasket - Better for NON-Torque-Plate Hone? [Re: Stanton] #1321892 10/18/12 10:57 AM 10/18/12 10:57 AM
Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually B BradH OP Taking time off to work on my car
BradH OP Taking time off to work on my car B Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually	Quote: Seems to me that every time someone gives you a sensible reply you come up with another reason to use the MLS gaskets. So I'd suggest you make yourself happy and go ahead and use them. In many cases, a "sensible reply" is simply PLR (Path of Least Resistance). I'm trying to determine if there is a legit benefit to the idea, rather than just throwing on what I have on hand. The first replies said it wouldn't make a difference, but I found out elsewhere that it could. So now I'm still wondering if it will make enough of a difference to bother with. What makes me happy is knowing that I've made a good decision based on the knowledge I have available at the time.

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