Cam spec's help - 10/08/02 10:00 PM
Ok mopar flathead fans, I'm hoping there's someone out there who knows a bit about cam spec's for the 230 flathead than I do.
Here's my setup:
1950 Plymouth 218 block bored .030" over,
230 crank, rods, flywheel,
Stock pistons .030" over,
Edgy finned aluminum head, 9:1 compression with stock pistons,
Stock valves (stainless exhaust) with heavier springs,
Edmunds water heated dual intake with pair of Holley 5200 progressive 2 barrel carbs,
Split factory exhaust manifold.
I want this engine to be hopped-up a bit, but don't want it to be too radical as I'm going to drive it daily. So, I had my engine shop send out my cam to their favorite grinder for a regrind that they called "3/4" and here's the spec's they gave me for the grind:
366 lift
226 duration from .050"
112 deg lobe seperation
My question is, did they do the right thing?
I don't know how these numbers translate into power range, idle, economy, etc.
I was told that this was an old Isky pattern, called the Max 1. But have since been told that the Max 1 was a flathead ford grind, and that the stock chrysler flathead cam has 250 dur @ .375" lift. Something doesn't seem to add up here, so I'm wondering what you-all think. And what you think would be the ideal cam grind for my application.
Any input greatly appreciated. Thanks, Pete
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Here's my setup:
1950 Plymouth 218 block bored .030" over,
230 crank, rods, flywheel,
Stock pistons .030" over,
Edgy finned aluminum head, 9:1 compression with stock pistons,
Stock valves (stainless exhaust) with heavier springs,
Edmunds water heated dual intake with pair of Holley 5200 progressive 2 barrel carbs,
Split factory exhaust manifold.
I want this engine to be hopped-up a bit, but don't want it to be too radical as I'm going to drive it daily. So, I had my engine shop send out my cam to their favorite grinder for a regrind that they called "3/4" and here's the spec's they gave me for the grind:
366 lift
226 duration from .050"
112 deg lobe seperation
My question is, did they do the right thing?
I don't know how these numbers translate into power range, idle, economy, etc.
I was told that this was an old Isky pattern, called the Max 1. But have since been told that the Max 1 was a flathead ford grind, and that the stock chrysler flathead cam has 250 dur @ .375" lift. Something doesn't seem to add up here, so I'm wondering what you-all think. And what you think would be the ideal cam grind for my application.
Any input greatly appreciated. Thanks, Pete
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