I will check out the isky E4 and look at the spets for that.

Thanks for the feedback guys

Keep em comming

Best regards Jimmy Carlsson, Fagersta (Sweden) Ford F100 1956, 272 , 3 manual with OD
Follow my restoration on http://dinnerhillspeedshop.blogspot.se/

Of course, my misstake 3,89 and nothing else.....ops

Best regards Jimmy Carlsson, Fagersta (Sweden) Ford F100 1956, 272 , 3 manual with OD
Follow my restoration on http://dinnerhillspeedshop.blogspot.se/

I  have a 1957ranchero,.040 over  bore,bone stock cam,g heads 3.25 gears,3speed trans,570 holley vac. sec.it works well, good lift frome a stop on a hill,
 i have instaled ford dura spark ign in the dist with 45gaped plugs.will install a 57 312 regrind cam in the future,to get some more high end grunt..tho my present resto takes most of my time,1948 merc f47 cnadian (f1),power will be 292 y with c heads modified to 190 intake valves,4speed manual,with 4th od.wondering about going to a 3.50 gears. still looking for 9in diff

You might get away with it with a 4.89 gear.

Chris, the E4 is a little smaller than the 270, which may make it stronger on the low end.  Do you also tow 3300lbs with it and haul stuff to the dump?  There is a big difference between cruising around with no load, versus towing.

My cam is a hair bigger than the 270, with more displacement and the low end is noticeably lacking for towing.  This is in conjunction with a 3.70 gear.  I have hauled probably about 1000lbs in the bed, an assembled Y, the automatic transmission and an engine hoist.  While it did it, I wouldn't want to do it for anything that is even remotely regular.  It's absolutely fine if not hauling anything of significant weight.  If anything, the cam is a bit small for me and the way I currently use it.



Lawrenceville, GA

Hi,my truck has an Isky E4 cam G heads and the 3.89 rear axle and i use a 390 vacuum secondary and 1 inch spacer and it is a pleasure to drive even in traffic with really good low end torque,with manual trasmission you should have no problems with this set up.
Smaller carburetors have a better signal at the Venturi by lower rpm than larger,on the othe other end you loose power on higher rpm range.

I think with the rear end ratio the 270 should be fine and I'm with Charlie on the 465 cfms Holley, even the 570 would work. I'm running around a 265 duration in my stock built 292 in my 56 convertible and feel like it needs to be a 270 duration cam at least. We tend to forget with our solid lifter engines we lose a little duration and lift with our lash adjustment which lowers the cam profile some from what I've read.


-Gary Burnette-

Are you sure the rear ratio is 4.89 and not 3.89?
I have a 3.89 rear with a 3 speed OD, 292 with a Isky E4 cam and use a 390 Holley and have no complaints, runs great in town and on the hiway. I did go to a larger squirter and upped the main jets a little..

The rear axle has a ratio of 4,89. That should effect the towing as well to the positive....

Its also a manual trans, alot more formgivning than an auto when towing

Best regards Jimmy Carlsson, Fagersta (Sweden) Ford F100 1956, 272 , 3 manual with OD
Follow my restoration on http://dinnerhillspeedshop.blogspot.se/

Or are there any other cam manufacturer and grind you could recomend?

Best regards Jimmy Carlsson, Fagersta (Sweden) Ford F100 1956, 272 , 3 manual with OD
Follow my restoration on http://dinnerhillspeedshop.blogspot.se/

I am open to suggestions would the 265 cam be more appropriate.

Or is it the stock cam that is need?



Best regards Jimmy Carlsson, Fagersta (Sweden) Ford F100 1956, 272 , 3 manual with OD
Follow my restoration on http://dinnerhillspeedshop.blogspot.se/