Cummins 4BT

CUMMINS 4 CYL 4 BT 3.9
 

Rocker Ratio 1.75/1
PROF. I.D. #   Duration
@.050
Cam
Lift
Valve
Lift
Lobe
Sep.
Description List Price
STAGE 2
C.341.S
INT.
175°
.251
.439
104
Re-grind only.
Core required.
$265 US
EXH.
210°
.307
.537
 
 
STAGE 3
C.343.S
INT.
181°
.280
.490
106
Big Stick - best all around power gains.
Our most popular drop-in cam.
No core required.
$465 US
EXH.
210°
.307
.537
 
 
STAGE 4
C.346.S
INT.
181°
.280
.490
107.5
**Straight drop in.
No core required.
$570 US
EXH.
218°
.323
.565
 
 
STAGE 5
C.349.S
INT.
199°
.296
.518
108
Competition only!
Valve relief required.
No core required.
$639 US
EXH.
218°
.323
.565
 
 

All our cams from stage 3 and up are brand new cast billets and no return core is required.

TAPPETS: We recommend only COLT CAMS CUSTOM 1.3 diameter max crown lifters = $110.00 US a set.

RETAINER: All our cams are drilled and tapped to accept our custom retainer to keep the gear from walking off. This is not required but highly recommended - $59.00 US

STOCK CAMS: We do carry brand new stock cams as well - $250.00 US

**NOTE!!!!! When we say our camshaft is a straight drop in, we mean: In almost all cases.
However, due to many contributing variances in an engine: heads planed, block decked, valve recession etc... any cam including stock, should always be checked for clearance before start up!