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-   -   Mopar 383 Connecting Rods (https://classracer.com/classforum/showthread.php?t=74746)

HP HUNTER 11-20-2019 08:57 PM
Re: Mopar 383 Connecting Rods
 
Quote:
Originally Posted by Tom Broome (Post 602310)
No, but you double the length. Makes it easier on the operator.
I like to finish the rods in pairs as they will run in the engine. Does it make a difference? I dunno....makes me feel good.

Its also how you keep the mandrel true, its always about working the mandrel when honing.

Larry Hill 11-21-2019 08:15 AM
Re: Mopar 383 Connecting Rods
 
''The cap cutter should cut the parting line perpendicular to the sides. Therefore we need to prepare the sides, to the best of our ability, before we cut the parting surfaces.''

The best way I have found to make thrust sides close to 90* to the bore is to make a mandrel and face each side of the rod on a lathe. The mandrel will have one rod on it for balance while the second the rod is being cut.

So how much rod side clearance is too much?

Glenn Briglio 11-21-2019 02:04 PM
Re: Mopar 383 Connecting Rods
 
Why bother with 40-50 year old stock junk when there are so many new rods available.By time you magnaflux, check for straightness, rebuild with better rod bolts, and bush the small end you could buy much better newer rods. And yes I've rebuilt stock rods with better rod bolts and couldn't keep the housing bores round.

Tom Broome 11-21-2019 02:16 PM
Re: Mopar 383 Connecting Rods
 
Quote:
Originally Posted by HP HUNTER (Post 602348)
Its also how you keep the mandrel true, its always about working the mandrel when honing.
I agree, back in post #13.

Tom Broome 11-21-2019 02:24 PM
Re: Mopar 383 Connecting Rods
 
Quote:
Originally Posted by Glenn Briglio (Post 602375)
Why bother with 40-50 year old stock junk when there are so many new rods available.By time you magnaflux, check for straightness, rebuild with better rod bolts, and bush the small end you could buy much better newer rods. And yes I've rebuilt stock rods with better rod bolts and couldn't keep the housing bores round.
Preaching to the choir.
But it seems that guys who are hot rodding big block Chevys and MoPars tend to stick with stock rods. Small block Chevys....you can't give away stock rods....literally. Come by if you want some.

James L Miller 11-21-2019 03:03 PM
Re: Mopar 383 Connecting Rods
 
I got an e-mail from Molnar rods that Tom Molnar will submit his 383 Mopar rod (w/BBC big end, stock length) to NHRA for SS approval. Nothing for the Stocker guys with the 383. I've been told that Hale is trying to get Manley to run another set of his rods (stock pin and big end sizes).

Glenn Briglio 11-21-2019 03:12 PM
Re: Mopar 383 Connecting Rods
 
Quote:
Originally Posted by Tom Broome (Post 602379)
Preaching to the choir.
But it seems that guys who are hot rodding big block Chevys and MoPars tend to stick with stock rods. Small block Chevys....you can't give away stock rods....literally. Come by if you want some.
Y'all need to teach your customer's what is needed and better for them.....lol

HP HUNTER 11-22-2019 10:06 PM
Re: Mopar 383 Connecting Rods
 
1 Attachment(s)
Larry Hill

What is this instrument used for in a machine shop?

Glenn Briglio 11-23-2019 07:39 AM
Re: Mopar 383 Connecting Rods
 
Quote:
Originally Posted by HP HUNTER (Post 602505)
Larry Hill

What is this instrument used for in a machine shop?
Could be to check connecting rods for straightness.

HP HUNTER 11-23-2019 09:43 AM
Re: Mopar 383 Connecting Rods
 
1 Attachment(s)
Another angle of view.


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