would work this cam with 3.42 gears????

[denis]

hello from germany..
what you thinking guys,would work this cam:

260H--
Hyd. 1200 to 5200rpm
260 260
212 212
.447 .447 110°
HYDRAULIC-Excellent power for towing. Good performance with highway gears, smooth idle

with 3.42 gears????

The car is 65 442 conv.with a th400 and a 2000 stall conv. tires are 26" and the engine are low comp.72 455.......

the rear ratio is now 2.28,i know the diff. in the drive feeling must be very diff.after the swap but would this be a good choice....maybe i have no power after 3500rpm...i don´t know???

thanks
and sorry for my english.....
regards
Denis

[joe_padavano]

That cam will work fine. If anything, you could go even a little more aggressive on the cam specs.

[70Wcars]

I agree with Joe in that cam may be a bit small when you go to the 3.42 gears. You will rev past the power band too quickly try the 214-224 cam..

[denis]

thaaaaankssssssss

[denis]

what do you thinking guys..... whats bigest cam i can use in my low comp.engine,without doing any maschine job like valve spring height change.

Headers-intake-a 750cfm carb-and a free flowing exhaust are installed.

[70Wcars]

you could probably get by with the 214-224 @.050 cam with stock springs...lift is under .500 for both valves...however using stock springs may hurt the motors ability to rev.

[denis]

is this the lunati cam???

[70Wcars]

Yep...but while I was looking at the Lunati catalog I saw a cam that sounds even better, it is the 217-221 @ .050 and .485 lift...I like the tighter lobes for the better power band.

[STLCRZY]

really thanks for the suggestion.........

in a few days i finish the gear(posi) job.....and then i will see how works the cam with the gears,maybe i´m happy with this combination????
If they works bad i will contact you 70w and may we still found another cams for my baby.

ooohhh,i have forget i use the comp cams stell rollern tip rockers....but i think this will nothing change in your cam suggestion !!!??

regards

[Kennybill]

Hello, I think you will be happy with that cam for street use. It is always best to keep RPM's in an unmodified oil systemed 455 UNDER 5000 RPM's anyway. I have the 268H Comp cam, 0.456/0.456 lift in my 71 Delta conv, lo-com 455 and I love that cam. I shift about 4600 RPM's if I open it up. In a lo-comp 455 one is NOT really gaining much, if anything by reving it higher. This is the third engine I have had this same cam in. It was in a G-body(1978-1986) Cutlass that had at different times 4:10 & 3:73 gears and it has been in a 350 Olds also. My 71 Delta only has 2:73 gears with headers, torque tubed dual exhaust, small converter but it will move out pretty good. Comp roller tip rockers,,,,,,hmmm, watch your push-rod lengths, I run "stock" bridge-type rockers that are made by Crane, just like stock Oldsmobiles but a hair lighter and new. You can get by with new stock valve springs, you can always shim them if you need more seat pressure which I doubt you will. Most Olds guys over "kill" everything, hey it is a Convertible. My inside joke I always say to my Olds Buddies is, "Hey, we aren't building a National Record Holder here." 4800RPM's with 3:42 gears should let you go around 110 miles per hour's, probably fast enough in a 1965 Olds convertible! Stay in the "slow" lane on the Autobaun!!! Good Luck, Ken

[denis]

i forgot .....
i use a high v.oil pump with h.shaft and a bigger milodon pan .....and the pushrods are from dick miller (if i remember .040).......
but the oil system are more for safety as for racing


thank you kennybill....
best regards from germany