All Small Six Camshafts

[pmuller9]

 

[pmuller9]

 

[pmuller9]

Reserved

 

[DON]

Thinking about getting one for down the road- if they become hard to get. Then again there might be a roller for the small six too!!

 

[pmuller9]

Thinking about getting one for down the road- if they become hard to get. Then again there might be a roller for the small six too!!

cr_bobcat is working on the possibility of fitting the Morel 300 six roller lifters into the 250 six and possibly the 200 six.
If so, then roller cams will be possible

 

[DON]

I would think ( and hope ) SOMEONE would still manufacture hyd cams in the future

 

[aussie7mains]

I would think ( and hope ) SOMEONE would still manufacture hyd cams in the future

CROW.

 

[cr_bobcat]

cr_bobcat is working on the possibility of fitting the Morel 300 six roller lifters into the 250 six and possibly the 200 six.
If so, then roller cams will be possible

Yup. Just waiting on them to arrive. There was a snafu in shipping. They just went out today. Should have them in a couple days.

Clay Smith has been a good go to for a number of years. I really like the 264/274 110° that I have. It's the older grind with slightly more lift than what is on the new card.

 

[aussie7mains]

cr_bobcat is working on the possibility of fitting the Morel 300 six roller lifters into the 250 six and possibly the 200 six.
If so, then roller cams will be possible

IMO unless you really improve the breathing a LOT on the USA sixes, a roller is a waste of effort, given the head wont allow NA power above about 6000rpm, why would you need rollers?

 

[pmuller9]

IMO unless you really improve the breathing a LOT on the USA sixes, a roller is a waste of effort, given the head wont allow NA power above about 6000rpm, why would you need rollers?

Because the USA flat tappet cams have a high rate of lobe failures and since there are no longer any new flat tappet cam cores available, once the present shelf supply is gone then there will be NO USA flat tappet cams. This includes small six cams.
The 300 six is at that crossroads and is why we made an effort to make 240/300 roller cams available.

 

[aussie7mains]

Because the USA flat tappet cams have a high rate of lobe failures and since there are no longer any new flat tappet cam cores available, once the present shelf supply is gone then there will be NO USA flat tappet cams. This includes small six cams.
The 300 six is at that crossroads and is why we made an effort to make 240/300 roller cams available.

I thought we are talking about small six cams? Crow in Australia still has them listed for precrossflow engines. The whole lobe fialures is something Ive never had a problem with, but I do use lots of Molysulphide grease on cams and lifters, I never do the high idle when first starting, IMO this might be why the lobes get damaged.

 

[pmuller9]

I thought we are talking about small six cams? Crow in Australia still has them listed for precrossflow engines. The whole lobe fialures is something Ive never had a problem with, but I do use lots of Molysulphide grease on cams and lifters, I never do the high idle when first starting, IMO this might be why the lobes get damaged.

We are talking about small six cams along with all other flat tappet cams for any engine.
It is my understanding that there are no new flat tappet cam cores available in the USA.
As an example, flat tappet cams are no longer available for the Jeep inline six and Newcomer Racing has totally switched to roller cams for all Jeep inline six engine builds.

 

[DON]

I guess worse case scenario, one could have one shipped from Australia. I had a roller rocker shipped and wasn’t a real big deal. Figuring out how to send Australian dollars with PayPal was the hardest part

 

[pmuller9]

I guess worse case scenario, one could have one shipped from Australia. I had a roller rocker shipped and wasn’t a real big deal. Figuring out how to send Australian dollars with PayPal was the hardest part

Or you can have a company like Delta Cams weld up your existing cam and grind whatever profile you need.

 

[DON]

The engine does have an oem cam. Will keep that in mind

 

[DON]

Do you have any ballpark of what they charge?

 

[63 Sprint]

Or you can have a company like Delta Cams weld up your existing cam and grind whatever profile you need.

When I spoke to them back in 2024, they do repairs on pretty much any camshaft made for automotive and industrial applications. Even small engines.

Do you have any ballpark of what they charge?

Here is their website. They answer calls. Seems like a good company to work with.

Repairs – Delta Camshaft

deltacam.com

 

[cr_bobcat]

IMO unless you really improve the breathing a LOT on the USA sixes, a roller is a waste of effort, given the head wont allow NA power above about 6000rpm, why would you need rollers?

Mostly to see if I can. That said, I do have a fairly heavily modified large log with direct mount, oversized valves, and am going to throw some boost at it. Not a lot, but some.