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Search: Posts Made By: CNC BLOCKS
Showing results 1 to 14 of 14
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Forum: General Q & A
01-25-2019, 12:41 AM
Replies: 35
Views: 4,387
Posted By CNC BLOCKS

Using a stock build sometimes does not work on...

Using a stock build sometimes does not work on fresh water cooled engines. Most of my builds I add .002 extra clearance on the two front cylinders and a .0015 on the rest which has worked for me for...
Forum: General Q & A
12-31-2016, 08:17 AM
Replies: 94
Views: 11,273
Posted By CNC BLOCKS

I don't believe the 300 degree oil temp hurt the...

I don't believe the 300 degree oil temp hurt the bearings That being said I have build circle track engines for many years and have seen many of those engines well over 300 degrees and no bearing...
Forum: General Q & A
12-23-2016, 03:53 PM
Replies: 151
Views: 22,867
Posted By CNC BLOCKS

X1000000000000 Higher rocker ratio's eat up HP as...

X1000000000000 Higher rocker ratio's eat up HP as well and do put more of a strain on cam, lifters and there is more valve acceleration as mentioned .
Forum: General Q & A
12-21-2016, 07:37 AM
Replies: 151
Views: 22,867
Posted By CNC BLOCKS

My builds over .800 lift I do go to a 55MM cam...

My builds over .800 lift I do go to a 55MM cam core and .904 lifters. I have not done a A to B test between the two.

I machine a lot of blocks for other builders and engines shop can only go by...
Forum: General Q & A
12-20-2016, 07:28 PM
Replies: 151
Views: 22,867
Posted By CNC BLOCKS

Any time you can reduce the pressure angle of the...

Any time you can reduce the pressure angle of the lifter is a big plus, More lift equals reduced base circle, Smaller base circle increases pressure angle which does not make for happy lifters.
...
Forum: General Q & A
12-20-2016, 10:52 AM
Replies: 151
Views: 22,867
Posted By CNC BLOCKS

Going to bigger cam cores and bigger rollers...

Going to bigger cam cores and bigger rollers effects pressure angle in a good way. Less pressure angle happier lifters!!

http://performancetechnician.com/pdf/2015/06jun/Life-of-a-Lifter-2.pdf

...
Forum: General Q & A
12-20-2016, 10:48 AM
Replies: 151
Views: 22,867
Posted By CNC BLOCKS

Those are a Hydraulic roller lifters considered a...

Those are a Hydraulic roller lifters considered a stock replacement compared to a lifter with a .750 wheel is more for a performance applications.
Forum: General Q & A
12-20-2016, 08:34 AM
Replies: 151
Views: 22,867
Posted By CNC BLOCKS

On the .904 lifters and the .937 I run them on...

On the .904 lifters and the .937 I run them on the low side as with the bigger bore more bleed off.

I did this build years ago for Kjell Adams Drag boat set National and World records ran for four...
Forum: General Q & A
12-19-2016, 07:37 PM
Replies: 151
Views: 22,867
Posted By CNC BLOCKS

Thats a different clearance then I was told, So...

Thats a different clearance then I was told, So far everyone else seems to be right at .0014 to .0019

Interesting I have found that they work good at .0015
Forum: General Q & A
12-19-2016, 04:19 PM
Replies: 151
Views: 22,867
Posted By CNC BLOCKS

I machine alot of lifter bores for lifter up...

I machine alot of lifter bores for lifter up grades to .904 and .937 rather then go to an .842 with bushing I would go to a .904 or .937.

I have seen about every lifter out there to size for...
Forum: General Q & A
12-23-2013, 11:48 AM
Replies: 53
Views: 28,394
Posted By CNC BLOCKS

lmao

lmao
Forum: General Q & A
12-21-2013, 07:29 PM
Replies: 53
Views: 28,394
Posted By CNC BLOCKS

After looking over the pics I can see the dowel...

After looking over the pics I can see the dowel holes in the pan rail which means they are done on a track system for production and is not a true CNC machined block but is done with gang tooling...
Forum: General Q & A
12-20-2013, 07:25 PM
Replies: 53
Views: 28,394
Posted By CNC BLOCKS

I have never seen the new 502 block but where its...

I have never seen the new 502 block but where its coming from CA and the epoxy paint is a good indicator that its probably a Chinese block.

Have never seen a PBM or the new World block. No one...
Forum: General Q & A
12-20-2013, 09:47 AM
Replies: 53
Views: 28,394
Posted By CNC BLOCKS

I am sure PBM/World blocks are better pieces then...

I am sure PBM/World blocks are better pieces then when Mitchell was selling them, Customer support sucked back then I had to stop selling them as there were costing me to much money to repair them!!...
Showing results 1 to 14 of 14


 
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