Re: 'new' engine
[Re: boatracer572]
#3114478
01/19/23 12:50 PM
01/19/23 12:50 PM
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Joined: Jan 2003
Posts: 19,544 Las Vegas
Al_Alguire
I Live Here
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I Live Here
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Posts: 19,544
Las Vegas
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It is close for sure, but can slide a piece of paper in there The picture makes it look much closer than it is, should be plenty of room there but time will tell for sure. Consequences of a big pushrod and a tie bar lifter. Should have gone to a keyway deal but this is just a bracket engine. Not anything crazy for sure.
"I am not ashamed to confess I am ignorant of what I do not know."
"It's never wrong to do the right thing"
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Re: 'new' engine
[Re: HardcoreB]
#3115026
01/21/23 12:03 AM
01/21/23 12:03 AM
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Joined: Mar 2003
Posts: 9,113 Rogue River, OR
Jeremiah
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Joined: Mar 2003
Posts: 9,113
Rogue River, OR
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That's a rowdy looking group of gearheads right there.
The valve covers are a classic institution of the 1970's Direct Connection catalog. While I am sure they won't be used in the final rendition you see them on some bery successful race cars in old pictures.
I really dig that roller lifter lash tool. Can you put some simple blue prints on a napkin and post it?
I think the "just have fun" approach is healthy. Not being the competitive type my time at the track is more of a social event. If racing goes okay that is a bonus lol. Days off of work shouldn't be successful!
Moving forward,.you really need to get aluminum valve covers and trim those studs before dvw does something crazy like install a fiberglass hood. : D Anything you can seat the lifer on ‘square’ this has 2 surfaces that locate. Having an ‘adjustable’ seat makes it modular for other lifters. Then mount a high resolution indicator in a way that pics up the centerline of the wheel and then pry the wheel to gage lash…verify it repeats and viola! He’s using old school M/T aluminum covers with a -12 vacuum fitting welded in place. Some of the stuff in pic was to ship it. Thank you for the instructions. I will post a pic or two of what I come up with.
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Re: 'new' engine
[Re: Jeremiah]
#3115092
01/21/23 11:37 AM
01/21/23 11:37 AM
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Joined: Jan 2003
Posts: 8,225 Plymouth, MI
Blusmbl
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Posts: 8,225
Plymouth, MI
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Awesome seeing the progress! Think you'll have it together in time for the May 5th heads up race at Milan?
'18 Ford Raptor, random motorcycles, 1968 Plymouth Fury III - 11.37 @ 118
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Re: 'new' engine
[Re: Blusmbl]
#3115637
01/23/23 11:55 AM
01/23/23 11:55 AM
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Joined: Jan 2003
Posts: 4,211 Shelby Twp. Mi
HardcoreB
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OP
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Shelby Twp. Mi
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Awesome seeing the progress! Think you'll have it together in time for the May 5th heads up race at Milan? That's the plan, much to do!
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Re: 'new' engine
[Re: HardcoreB]
#3115693
01/23/23 02:23 PM
01/23/23 02:23 PM
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Joined: Jan 2003
Posts: 18,025 S.E. Michigan
ZIPPY
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I Live Here
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S.E. Michigan
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I love the old DC valve covers, but then again I'm pretty hopeless in that regard. Very confident it will be a screamer, whichever combination is chosen.
Rich H.
Esse Quam Videri
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Re: 'new' engine
[Re: HardcoreB]
#3116805
01/26/23 05:07 PM
01/26/23 05:07 PM
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Joined: Nov 2011
Posts: 291 PA
Harry's Taxi 2
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Joined: Nov 2011
Posts: 291
PA
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More mock-ups, more 'problems'... Could you explain why you used the insert verses a heli-coil? Thank You
'86 Maple Grove KOS Mopar low qualifier......true street legal with no power adders.
NOS-used when losing since 1940.
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Re: 'new' engine
[Re: Harry's Taxi 2]
#3116967
01/27/23 10:02 AM
01/27/23 10:02 AM
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Joined: Jan 2003
Posts: 4,211 Shelby Twp. Mi
HardcoreB
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More mock-ups, more 'problems'... Could you explain why you used the insert verses a heli-coil? Thank You In a word, that insert is more robust than a heli-coil. I left it up to the person that machined the head to make the call on what to use. From what i have HEARD the threads tend to rip-out when using no insert and just tapping the aluminum. So while a guy is here, may as well put something in there.
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Re: 'new' engine
[Re: HardcoreB]
#3117046
01/27/23 01:24 PM
01/27/23 01:24 PM
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Joined: Nov 2011
Posts: 291 PA
Harry's Taxi 2
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PA
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More mock-ups, more 'problems'... Could you explain why you used the insert verses a heli-coil? Thank You In a word, that insert is more robust than a heli-coil. I left it up to the person that machined the head to make the call on what to use. From what i have HEARD the threads tend to rip-out when using no insert and just tapping the aluminum. So while a guy is here, may as well put something in there. I have always heli-coiled pretty much everything aluminum (and even some old Stage 5 cast iron) but after seeing your pictures i got to thinking maybe heli-coils weren't always the way to go. i have both types on hand. Thank you for the reply.
'86 Maple Grove KOS Mopar low qualifier......true street legal with no power adders.
NOS-used when losing since 1940.
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Re: 'new' engine
[Re: dvw]
#3117092
01/27/23 03:15 PM
01/27/23 03:15 PM
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Joined: Jan 2003
Posts: 4,211 Shelby Twp. Mi
HardcoreB
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I did the same thing as Sean with inserts. Actually Time-Serts. The reason for doing mine was to move the T&D bed plate outward .060" towards the valves. Since the Time-Sert is a larger diameter it made sence. The holes were offset bored. Then the inserts were able to be installed with no welding of te original holes. Doug So just for clarity here, I'm not sure where Doug's heads were initially machined (on what centerline) but if you move MINE, TOWARDS THE VALVE, it crashes the pushrod into the head! I'm just clarifying for anyone who might convert their heads to paired rockers with bolt-down stands. I can tell you we are using the same lifter seat height. A taller lifter seat would move the pushrod away from the head. ANOTHER VARIABLE is if the rockers had a different pivot but had the same ratio. But we also have the same rocker bodies! I can only assume with confidence that my original point of reference was on the same plain as the factory holes used for the original 5 'pedestal' holes. your results may vary lol
Last edited by HardcoreB; 01/27/23 03:20 PM.
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Re: 'new' engine
[Re: HardcoreB]
#3117151
01/27/23 08:40 PM
01/27/23 08:40 PM
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Joined: Mar 2006
Posts: 9,982 MI, usa
dvw
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Mine were mounted in the original plane. Some of the original holes were just drilled deeper. When we moved them .060" toward the valve they only required minor trimming for the pushrods. Doug
Last edited by dvw; 01/27/23 08:41 PM.
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Re: 'new' engine
[Re: HardcoreB]
#3117702
01/30/23 12:41 PM
01/30/23 12:41 PM
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Joined: Jan 2003
Posts: 4,211 Shelby Twp. Mi
HardcoreB
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OP
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Shelby Twp. Mi
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Not sure what some of this has to do with the price of tea in China!? I can tell you on these heads now, with this cam, lifters, pushrods, 1.6 pivot/1.7ratio TD rocker system and 5.344 valve length with an .080" lash cap the centerline for the rocker bar hold-downs needs to move some away from the valve to allow for more lift. Getting the sweep adjusted optimal, moves the pushrod further into the head AND BOLT/STUD besides all that moving the centerline towards the valve compromises the angularity on the backside of the rocker. I'm probably sweating nothing here? but with open loads over 1000lbs and rpm over 8000, it isn't going to be a bracket build from my perspective. To clarify "Getting the sweep adjusted optimal" is done in this case, by milling the rocker bar pad down further. So, it "...moves the pushrod further int..."
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Re: 'new' engine UPDATES 440-1cnc
[Re: HardcoreB]
#3160458
07/18/23 09:19 AM
07/18/23 09:19 AM
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Joined: Jan 2003
Posts: 4,211 Shelby Twp. Mi
HardcoreB
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OP
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In an act of desperation I put a request for a 55mm thrust bearing on FB and Jim Clarke (aka TS3103) came thru the next day so i could do some mock-up work. Thanks JIM!
Last edited by HardcoreB; 07/18/23 09:21 AM.
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