Mopar 383 Connecting Rods - Page 4

HP HUNTER · 11-20-2019, 08:57 PM

Quote:

Originally Posted by Tom Broome

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

''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

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

Quote:

Originally Posted by HP HUNTER

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

Quote:

Originally Posted by Glenn Briglio

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

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

Quote:

Originally Posted by Tom Broome

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

Larry Hill

What is this instrument used for in a machine shop?

Glenn Briglio · 11-23-2019, 07:39 AM

Quote:

Originally Posted by HP HUNTER

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

Another angle of view.

11-21-2019, 08:15 AM	#32
Larry Hill Live Reporter Join Date: Oct 2004 Location: Hickory, Ky Posts: 10,273 Likes: 1,631 Liked 9,427 Times in 1,952 Posts	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? __________________ IHM Used Parts https://ihmusedparts.com 888-821-1817

11-21-2019, 02:04 PM	#33
Glenn Briglio VIP Member Join Date: Nov 2002 Location: Massapequa Park,NY Posts: 1,206 Likes: 1,727 Liked 822 Times in 264 Posts	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. __________________ 1989 Camaro Iroc-Z I/SA B&B Auto Machine Shop.

11-21-2019, 03:03 PM	#36
James L Miller Member Join Date: Apr 2005 Posts: 495 Likes: 6 Liked 24 Times in 15 Posts	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). __________________ Mopar 2 Ya!

11-22-2019, 10:06 PM	#38
HP HUNTER Senior Member Join Date: Feb 2012 Location: Colorado Springs Colorado/Thousand Oaks Ca Posts: 606 Likes: 68 Liked 238 Times in 97 Posts	Re: Mopar 383 Connecting Rods Larry Hill What is this instrument used for in a machine shop? Attached Thumbnails

11-23-2019, 09:43 AM	#40
HP HUNTER Senior Member Join Date: Feb 2012 Location: Colorado Springs Colorado/Thousand Oaks Ca Posts: 606 Likes: 68 Liked 238 Times in 97 Posts	Re: Mopar 383 Connecting Rods Another angle of view. Attached Thumbnails