Stroker specific cams?

Finally read through the thread- my recap
mostly see street use, up to several hundred mile drives with A/C and power brakes. first page

I want to keep the duration under [email protected] for good measure. Post 38

What rumble said post 41

Your 232* duration just simply puts the operating hand at a certain point to start. Where it ends is another story based on the part on the engine.
After that, the court is WIDE OPEN to how everything else is being done. And that’s a huge field.

What Krooser said post 43

You don't want a Ford {actually chevy in ford}XFI lobe on your Mopar you want a lobe designed for a .904 lifter. Big difference.

What Matt said post 46

Don't forget Shane at Crower to talk to him, he did my custom cam for my build plus many others. Great guy as well.



Cal post 51

solid Roller 242/250 550/575 110 or 108

Dial it in so the seat timing @ .004” lift sees the intake close at around 70 degrees ABDC for a DCR of about 7.9:1
Glad to hear your going with the Pro Flo 4 it’s what I’m using on my stroker build as well!

IMHO the overlap and .004 as Cal mentions is very Important

YR post 56

What NM says about Manifold Pressure (MP) is very germaine to EFI post 58

The higher the better is going to give a better experience on the street





Bullet post 59

Intake

230 @.050”

.367” lobe lift, .587” with 1.6 rocker

284 duration @.006”

Exhaust

234 @.050”

.367” lobe lift, .587” with 1.6 rocker

288 duration @.006”

113 lobe separation

109 intake centerline



Comp XFI chevy lobes uses 114 LCA on a ford magazine build +8 on exhaust duration



Non EFI suggestions

ATK crate from post 26

229/233 @050 .520in/.515 ex 110LSA.

Brian at IMM recently used. It used [email protected] on the intake with 580ish lift IIRC.

Jpar Oregon 238-248 526 lift 1.6 rocker 108 LCA post 60

Superchaargeddrt post 77



What NM says post 62 @64 same as my experience with factory EFI

What YR says post 68



Jones HR

Cam# Chr360M, HR73353-110
233/233 @.050"
.353"/.353" Lobe Lift .529 w/ 1.5 .564 w/ 1.6 .600 w 1.7 (magnum)
110 LSA
going to cam list on website lobe HR73353
292 @.006 151@200
it's the 151@200 that gives the power- the seat timing gives the vacuum etc
from Jones website- here's the theory

e. Using our proprietary Inverse Radius technology, these EHR Series profiles offer the most area over the nose with less overlap, resulting in more horsepower and torque without sacrificing idle-smoothness and reliability


(Edit for fumblefinger retypos)
Inverse Radius technology produce a slow initial opening of the valve, then increases the lift rate as needed per engine specifications {intake, rod length/ratio- and exhaust pull etc}

Inverse radius give you more area under the curve at the same lift and duration than a normal flat flanked roller profile

The result is less air being lost to the overlap process, and more air being retained in the cylinder

This makes the engine more efficient, increasing both torque and Horsepower



short duration allows him to squeeze the LCA down

His 233 inverse radius HR is going to be shorter on the seat than the Bullet

Did you emphasize usage and EFI in your questioner or did you do it by phone
cam looks big to me

So it comes down to tradeoffs

Solid FT or inverse radius HR or inverse radius solid roller



flat flank roller is going to be 10 degrees bigger seat to seat which hurts getting the Intake closed and other valve events and hurts overlap for this EFI build