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Re: Rocker ratio questions [Re: fourgearsavoy] #2597979
12/28/18 02:22 PM
12/28/18 02:22 PM
Joined: Oct 2003
Posts: 3,999
South Park, Pa.
68LAR Offline
master
68LAR  Offline
master

Joined: Oct 2003
Posts: 3,999
South Park, Pa.
Originally Posted By fourgearsavoy
Well I'm looking at another Howards cam 260/268 duration and 555/574 lift with 108 separation.
The lift seems a little low but the duration is where I think would work with my car.

Gus beer


Close to the 259/266 that mine is, but with less lift and 1* less C/L.

open -------- close
int.24.5 BTDC 54.5 ABDC
ext.66 BTDC 20 ATDC These are the valve events of my cam.

With this, my power band is 3200-7200. Torq comes in around 4300.
My 2 step is usually set between 4600-5200.

Last edited by 68LAR; 12/28/18 02:27 PM.

4 speed street legal. Best time 10.99 @ 124 mph on 93 octane pump gas @ 3926# total weight
Re: Rocker ratio questions [Re: 68LAR] #2597994
12/28/18 02:52 PM
12/28/18 02:52 PM
Joined: Oct 2003
Posts: 3,999
South Park, Pa.
68LAR Offline
master
68LAR  Offline
master

Joined: Oct 2003
Posts: 3,999
South Park, Pa.
Originally Posted By 68LAR
Originally Posted By fourgearsavoy
Well I'm looking at another Howards cam 260/268 duration and 555/574 lift with 108 separation.
The lift seems a little low but the duration is where I think would work with my car.

Gus beer


Close to the 259/266 that mine is, but with less lift and 1* less C/L.

open -------- close
int.24.5 BTDC 54.5 ABDC
ext.66 BTDC 20 ATDC These are the valve events of my cam.

With this, my power band is 3200-7200. Torq comes in around 4300.
My 2 step is usually set between 4600-5200.




Gus,
It seems you are liking Howards cams. See if this one fits? part number 721602-08. 260/260 .616/.616 lift on a 108 c/l. power 35-7200 rpm.

Last edited by 68LAR; 12/28/18 02:52 PM.

4 speed street legal. Best time 10.99 @ 124 mph on 93 octane pump gas @ 3926# total weight
Re: Rocker ratio questions [Re: 68LAR] #2598163
12/28/18 10:07 PM
12/28/18 10:07 PM
Joined: Dec 2004
Posts: 10,549
Rittman Ohio
fourgearsavoy Offline OP
I Live Here
fourgearsavoy  Offline OP
I Live Here

Joined: Dec 2004
Posts: 10,549
Rittman Ohio
Well I pulled the trigger and ordered Howard's flat cam 260/264 616/620 108 LS and I think I will like it. Also ordered the Direct Lube lifters and some Max ZPM break in lube.
All in for $323.48
Still looking at springs,bee-hive maybe shruggy

Gus beer


64 Plymouth Savoy
493 Indy EZ's by Nick at Compu-Flow
5-Speed Richmond faceplate Liberty box
Dana 60
Re: Rocker ratio questions [Re: fourgearsavoy] #2598167
12/28/18 10:18 PM
12/28/18 10:18 PM
Joined: Mar 2009
Posts: 2,457
Sydney,Australia
tex013 Offline
top fuel
tex013  Offline
top fuel

Joined: Mar 2009
Posts: 2,457
Sydney,Australia
Originally Posted By fourgearsavoy
Well I pulled the trigger and ordered Howard's flat cam 260/264 616/620 108 LS and I think I will like it. Also ordered the Direct Lube lifters and some Max ZPM break in lube.
All in for $323.48
Still looking at springs,bee-hive maybe shruggy

Gus beer


up

Tex


New best ET 10.259@129.65 .
New best MPH 130.32
Finally fitted a solid cam,
stepped it up a bit more
3690lbs through the mufflers
New World block 3780lbs 10.278@130.80 . Wowser 10.253@130.24 footbraking from 1500rpm
Power by Tex's Automotive
Re: Rocker ratio questions [Re: fourgearsavoy] #2598168
12/28/18 10:31 PM
12/28/18 10:31 PM
Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
B
BradH Offline
Taking time off to work on my car
BradH  Offline
Taking time off to work on my car
B

Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
Originally Posted By fourgearsavoy
Well I pulled the trigger and ordered Howard's flat cam 260/264 616/620 108 LS and I think I will like it. Also ordered the Direct Lube lifters and some Max ZPM break in lube.
All in for $323.48
Still looking at springs,bee-hive maybe shruggy

Gus beer

Why so small? I run bigger in my 440.

Re: Rocker ratio questions [Re: fourgearsavoy] #2598231
12/29/18 02:11 AM
12/29/18 02:11 AM
Joined: Aug 2003
Posts: 43,007
Bend,OR USA
C
Cab_Burge Offline
I Win
Cab_Burge  Offline
I Win
C

Joined: Aug 2003
Posts: 43,007
Bend,OR USA
Originally Posted By fourgearsavoy
Well I pulled the trigger and ordered Howard's flat cam 260/264 616/620 108 LS and I think I will like it. Also ordered the Direct Lube lifters and some Max ZPM break in lube.
All in for $323.48
Gus beer
I like your choice on that cam up Where will you install the intake lobes?


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: Rocker ratio questions [Re: Cab_Burge] #2598355
12/29/18 01:38 PM
12/29/18 01:38 PM
Joined: Oct 2003
Posts: 3,999
South Park, Pa.
68LAR Offline
master
68LAR  Offline
master

Joined: Oct 2003
Posts: 3,999
South Park, Pa.
Originally Posted By Cab_Burge
Originally Posted By fourgearsavoy
Well I pulled the trigger and ordered Howard's flat cam 260/264 616/620 108 LS and I think I will like it. Also ordered the Direct Lube lifters and some Max ZPM break in lube.
All in for $323.48
Gus beer
I like your choice on that cam up Where will you install the intake lobes?


I like that choice also. I think it will work out real well for you.


4 speed street legal. Best time 10.99 @ 124 mph on 93 octane pump gas @ 3926# total weight
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