more thoughts about needle bearings

Ed Wright · 08-07-2017, 07:14 PM

Quote:

Originally Posted by mike pearson

what valve springs are you using?

1356 pac.
Why does it keep changing caps to lower case??

Mike Pearson · 08-07-2017, 08:25 PM

Quote:

Originally Posted by Ed Wright

1356 pac.
Why does it keep changing caps to lower case??

Thanks Ed

Ed Wright · 08-08-2017, 09:23 AM

Quote:

Originally Posted by Mike Pearson

Thanks Ed

1.5" diameter. I can get on all my head bolts.

Mike Pearson · 08-08-2017, 11:40 AM

Quote:

Originally Posted by Ed Wright

1.5" diameter. I can get on all my head bolts.

We have that spring on one of our engines and they have held up real good. The others have triple manleys or comps. I am thinking about changing the others to the Pac spring. My machine shop guy is a manley and comp dealer so that's why I have been using that spring.

Hacksaw · 08-08-2017, 01:52 PM

The real beauty of that 1.5" spring is that the pocket in the head is smaller, helps you stay away from water.

Mike Pearson · 08-08-2017, 02:01 PM

Quote:

Originally Posted by Hacksaw

The real beauty of that 1.5" spring is that the pocket in the head is smaller, helps you stay away from water.

Yup that's why we did it. The 441 chevy head is thin in that area.

Hacksaw · 08-08-2017, 03:46 PM

Back on op: Any other theories on needle bearing lifter failures?

08-08-2017, 01:52 PM	#5
Hacksaw Senior Member Join Date: Sep 2016 Posts: 884 Likes: 209 Liked 311 Times in 175 Posts	Re: more thoughts about needle bearings The real beauty of that 1.5" spring is that the pocket in the head is smaller, helps you stay away from water.

08-08-2017, 03:46 PM	#7
Hacksaw Senior Member Join Date: Sep 2016 Posts: 884 Likes: 209 Liked 311 Times in 175 Posts	Re: more thoughts about needle bearings Back on op: Any other theories on needle bearing lifter failures?