Stock Camshaft Profiles & Compatibility List

[no_doz]

does anyone on here happen to know the stock camshaft profiles for all or most of the different 60* engines and also are any of them interchangeable with eachother (granted that you get custom pushrods)?

[asylummotorsports]

It's all in the "specifications" listing

[IsaacHayes]

I only see lift as a spec listed as .2727" I was wondering what the stock cam specs are too for gen3.

[3400-95-Modified]

.2727 x 1.6 = .4363 lift...

All the cams are the same. They have 196 duration.


Napa specs
* Cam Lift (Exhaust):.272"
* Cam Lift (Intake):.272"
* Cam Timing at .050" Lobe Lift (Exhaust Close):12 Deg BTC
* Cam Timing at .050" Lobe Lift (Exhaust Open):32 Deg ABC
* Cam Timing at .050" Lobe Lift (Intake Close):29 Deg BBC
* Cam Timing at .050" Lobe Lift (Intake Open):15 Deg ATC
* Degrees Overlap:39 Deg
* Duration at .050" Lobe Lift (Exhaust):197 Deg
* Duration at .050" Lobe Lift (Intake):197 Deg
* Lobe Centerline (Exhaust):111 Deg
* Lobe Centerline (Intake):113 Deg
* Valve Lash (Exhaust):Hyd.
* Valve Lash (Intake):Hyd.
* Valve Lift (Exhaust):.436"
* Valve Lift (Intake):.436"

also

http://www.60degreev6.com/Stock_Camshafts

[no_doz]

i thought the older engines had 1.5 ratio rockers? and you're telling me that an 89 camaro 2.8 cam has the same profile as a 3400?

[Superdave]

no, the old flat tappet cams are smaller.

this is the 'HO" cam from the gen2 engines.

Cam Specs:

Part number: 10118636

Material; Cast Iron

Drive; Crank via chain drive

Weight: 3.098 kg/6.83 lbs

Valve timing at .050”

Intake/Exhaust duration: 194/202 degrees

Intake valve open: 13 degrees after TDC

Intake valve closed: 27 degrees after BDC

Exhaust valve open: 29 degrees before BDC

Exhaust valve closed: 7 degrees before TDC

Intake lobe center: 109 degrees

Exhaust lobe center: 109 degrees

Intake Lift: .2626”

Exhaust lift: .273”

Lobe separation angle: 112

Rocker ratio: 1.5:1

Total effective lift with 1.5:1 rocker: .4095”