UltraDyne Cam Specs

The information and pages posted below were found in the internet-archive.org and are purely for historical purposes only.

ULTRADYNE CAM LISTINGS:
426 HEMI CAMS – – “B/RB” BigBlock CAMS – – “LA” SmallBlock CAMS

ULTRADYNE CHRYSLER CAMS

Are you looking for a real Chrysler camshaft designed for the Chrysler .904 lifter? Our mechanical flat tappet cams are not just a Chrysler core with a (Chevy) .842 lifter grind on them. They are designed to take full advantage of the .904 Mechanical flat tappet lifter and we can prove it!

It is true that we do not have a Hydraulic flat tappet cam designed for the .904 diameter lifter but they are coming soon. It is also possible for us to have ".842" or ".875" designs ground on a Chrysler cam core if the application warrants i.e. less lift, milder acceleration rates etc. Some maybe listed in the catalog that have been ground in that configuration and they are popular grinds so we list them, but we DO have masters specifically designed for the .904 Mechanical flat tappet lifter.

Note From Harold:
We have had some feed back from "A concerned Citizen" that we are lying when we say we are making real Chrysler cams, and that we are making Chevy Cams and calling them Chryslers. That’s true as far as Hydraulics go, but then our Chevy profiles are superior to others. When MUSCLE MOTORS first Dyno-tested our cams around 1990, they found our .875" lifter 309 outperformed EVERY mechanical flat tappet cam offered for the 440 with less wear.

Our NF .904" cams are .017" from the edge of a .904 tappet, and here’s a comparison showing who makes the " REAL CHRYSLER CAMS" (All data from published website info)

This is for any "concerned citizens"

Manufacturer/Grind	.020	.050	.200	Valve Lift (1.5 Rocker)
UltraDyne (NF60/NF57)	278/282	251/255	168/172	.570/.582
Hughes/Engle	275/281	245/250	164/167	.560/.575

UltraDyne (NF59/NF64)	290/298	263/271	181/188	.597/.620
Hughes/Engle	287/295	256/263	167/175	.587/.602

UltraDyne (1980 .842" Lifter)	292	259	170	.551
Crane (1998 .904" Lifter)	294	258	166	.560

UltraDyne (1985 .875" Lifter)	309	276	190	.613
Crane (1998 .904" Lifter)	314	278	186	.600

Let the numbers speak for themselves.
UltraDyne Masters Comparison

NF .842 FLAT TAPPET CAMS VL =.016" 1.5:1
*.020* *duration*	*.050* *duration*	*.200* *duration*	*lobe* *lift*	*104*	*106*	*108*	*110*	*1.5*	*1.6*	*1.7*
*274*	*244*	*154*	*.3468*	*.107*	*.099*	*.092*	*.085*	*.520*	*.555*	*.590*
*278*	*248*	*158*	*.3534*	*.113*	*.106*	*.099*	*.092*	*.530*	*.565*	*.600*
*282*	*252*	*162*	*.3608*	*.120*	*.113*	*.106*	*.099*	*.541*	*.577*	*.613*
*286*	*256*	*167*	*.3680*	*.126*	*.119*	*.112*	*.105*	*.552*	*.589*	*.625*
*290*	*260*	*170*	*.3750*	*.134*	*.127*	*.120*	*.113*	*.563*	*.600*	*.638*
*294*	*264*	*174*	*.3820*	*.140*	*.133*	*.126*	*.119*	*.573*	*.611*	*.649*
*298*	*268*	*178*	*.3887*	*.148*	*.141*	*.134*	*.127*	*.583*	*.622*	*.661*
*304*	*274*	*185*	*.4000*	*.162*	*.155*	*.148*	*.141*	*.600*	*.640*	*.680*
NF .904 FLAT TAPPET CAMS VL =.016" 1.5:1
*.020* *duration*	*.050* *duration*	*.200* *duration*	*lobe* *lift*	*104*	*106*	*108*	*110*	*1.5*	*1.6*	*1.7*
*274*	*247*	*164*	*.3727*	*.117*	*.110*	*.102*	*.095*	*.559*	*.596*	*.633*
*278*	*251*	*168*	*.3803*	*.125*	*.117*	*.110*	*.102*	*.570*	*.608*	*.646*
*282*	*255*	*172*	*.3879*	*.133*	*.125*	*.118*	*.110*	*.582*	*.620*	*.659*
*286*	*259*	*177*	*.3908*	*.141*	*.133*	*.126*	*.118*	*.587*	*.625*	*.664*
*290*	*263*	*181*	*.3980*	*.148*	*.141*	*.133*	*.126*	*.597*	*.637*	*.677*
*294*	*267*	*185*	*.4058*	*.157*	*.150*	*.142*	*.134*	*.609*	*.650*	*.690*
*298*	*271*	*188*	*.4134*	*.163*	*.155*	*.148*	*.140*	*.620*	*.662*	*703*
*304*	*277*	*193*	*.4265*	*.173*	*.165*	*.158*	*.150*	*.640*	*.683*	*.726*

ULTRADYNE CHRYSLER CAMS

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