The standard NASCAR Whelen All-American Series Late Model Stock rule book will be updated to include an upgraded camshaft.
The update was first published by Race22.com.
In a tech bulletin released by Ford Performance, it was announced that the M6007 camshaft has been approved by NASCAR for use during the 2019 season. As is always the case, the NASCAR Whelen All-American Series rule book is a guideline and member tracks are free to craft their own rule books.
FORD PERFORMANCE TECH BULLETIN 11-13-18
Ford Performance D347SR7 LMSC Power Upgrade
This tech bulleti adds an optional camshaft and roller lifter for the M-6007-D347SR7 engine used in NASCAR Late Model Stock Car racing
Camshaft Specifications
- COMP Cams PN: FPC-D347SR7
- Intake 234°@.050” .559” lift with the 1.65 rocker arm COMP Cams lobe – 3706F*
- Exhaust 238° @.050” .559” lift with the 1.65 rocker arm COMP Cams lobe 3652F*
- Installed at 102° + or – 2° intake centerline
- Lobe separation is 106°
- 5/16” pushrod length will vary based on lifter used
- Windsor firing order
* Note, the love in the catalog will not have the “F” suffix. The “F” is assigned to the lobe to indicate the master required for the applications base circle.
Recommended Lifters – conventional needle bearing solid roller lifter
- Comp Cams PN 838-16
- Crower PN 66215-16 OR 66215H-16
- Morel PN 5436
- Morel PN 5436 is sold under private label – these are several examples
- Liberty LPC-3570-16
- Howards 91288
Other Spec Changes
- Increase maximum bore size from 4.045” to 4.050”
Mike Delahanty
Ford Performance Parts – Circle Track Program Manager
[email protected]
248-821-3951
FORD PERFORMANCE TECH BULLETIN 11-13-18
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