Factory Camshafts ~ 1968 340 '4-Speed' vs. Chevy '151'

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69 Cuda 440

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Factory Camshafts
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'Advertised Specifications'

1968 Mopar 340/275 HP '4-Speed'

.445"/.455" Lift ~ 284*/292* Duration ~ 60* Overlap ~ 114* CL

Duration @ .050" = 214*/222*

Note; Some literature lists this Camshaft with a 276*/284* Duration and a 52* Overlap.

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Chevrolet 327/350 HP 'L-79' #3863151 { '151' }

.447"/.447" ~ 306*/306* Duration ~ 74* Overlap ~ 110*/108* CL

Duration @ .050" = 221*/221*

Note: Some literature lists this Camshaft with a 320*/320* Duration at 'Zero Lash'.
 
Thank-you 69Cuda440,, there was a lotta yakking lately about the 68 cam,, and I was sure it was 284/292 from dialing a bunch in yrs ago,, but I couldn't find the specs. by usual means,, thnx again..

I have a lotta respect for both cams..
 
69 Cuda 440 said:
A-Body,

You know the 'deal'.

Every Chevy Small Block Guy on the street wanted the 327/350 HP Camshaft.

Back-in-the-Day, what did they call this Chevy Camshaft........ ???
Click to expand...
That"s a damn good question.and honestly ( for once!lol.),I am at a loss for words.I don't know... I always called it the L79,or the 151 grind.First cam,I was around,and it worked/works..... Actually never seen that 340 cam,honk.
 
Abodybomber said:
That"s a damn good question.and honestly ( for once!lol.),I am at a loss for words.I don't know... I always called it the L79,or the 151 grind.First cam,I was around,and it worked/works..... Actually never seen that 340 cam,honk.
Click to expand...

A-Bomber,

I've heard many names for Camshafts when I worked at my Father's Machine Shop.

But never this one..............

One guy came in and said he wanted a '327 Juicer' in his Small Block Chevy.

We all looked at each other, and had 'No Effing' idea of what he was talking about.

We asked, what is a '327 Juicer'.

The Cool Chevy guy replied....."A Juicer man. Squish squish. Hydraulic"
 
I remember when I was a kid in the '70's one of my dad's friends had a '55 chevy with a 283 with that 350 horse cam. It had a decent lope to it.
 
69 Cuda 440 said:
A-Bomber,

I've heard many names for Camshafts when I worked at my Father's Machine Shop.

But never this one..............

One guy came in and said he wanted a '327 Juicer' in his Small Block Chevy.

We all looked at each other, and had 'No Effing' idea of what he was talking about.

We asked, what is a '327 Juicer'.

The Cool Chevy guy replied....."A Juicer man. Squish squish. Hydraulic"
Click to expand...
Clarification,Thank You.....
 
There it is! The 327/375hp motor I was talking bout. 375 at bout 7200 rpm?
 
I have allways wondered about those "375" horse 327s, I know people talk about they were so awesome and all, but they made 100 more HP than the 340? or the same HP as the 440 HP? I dunno, it seems like I remember a magazine article testing head flow, and those double hump heads were no better than a X head....
 
3/4 cam man...that was the rage,or full race cam...sheosh...I'll take a double cam sir...lmao
 
Chevrolet '151' Camshaft

* 'Special High-Performance'
* Hydraulic Lifter
* Very Good Throttle Response
* Great Power Curve
* Adequate Vacuum For Power-Brakes
* Lumpy Performance
* 800 RPM Idle
* 70* Overlap
* 4-Speed Transmission Only Application from the Factory
* Range 2400 to 5800 RPM's

General Analysis
* Pulls like a Freight Train above 5000 RPM's
* Poor Performer below 2000 RPM's
* Works well with 11.0 Compression-Ratio, 2.02" Cylinder Heads and Aluminum Dual-Plane High-Rise Intake
* Matches well with Factory Dual-Exhaust 2.5" Exhaust Pipe System
* Compatible with the {special factory calibrated} 'Holley' {585 CFM} Carburetor.
* Requires a 2500 RPM Stall-Converter for Automatic Transmission.
 
69 Cuda 440 said:
Chevrolet '151' Camshaft

* 'Special High-Performance'
* Hydraulic Lifter
* Very Good Throttle Response
* Great Power Curve
* Adequate Vacuum For Power-Brakes
* Lumpy Performance
* 800 RPM Idle
* 70* Overlap
* Automatic {Requires 2500 RPM Stall Converter}

General Analysis
* Pulls like a Freight Train above 5000 RPM's
* Poor Performer below 2000 RPM's
* Works well with 11.0 Compression-Ratio, 2.02" Cylinder Heads and Aluminum Dual-Plane High-Rise Intake
* Matches well with Factory Dual-Exhaust 2.5" Exhaust Pipe System
* Compatible with the {special factory calibrated} 'Holley' {595 CFM} Carburetor.
Click to expand...

That's spot on.A Edelbrock C3BX,with a 3310 makes life happier here.
 
single pattern 110CL still my favorite. Kicks you in the gut. chrys,gm,ford no matter
 
Chevy 327/350 HP Camshaft

What's My Name ???

* '151'
* 327 / 350 HP
* Chevy Small Block '3/4 Race'
* '327 Juicer'
* 'L-79 Cam'
* '65 Special High Performance'
* 'Grumpy's Hydraulic'
 
rbdart said:
3/4 cam man...that was the rage,or full race cam...sheosh...I'll take a double cam sir...lmao
Click to expand...

threequartercam.JPG
 
You Guys Got it ...."We" old timers called the solid lift cam the "30-30" which in fact (as far as I know it, I had one) was the Valve lash setting and real Gear Heads would understand (at least the chevy guys). The "151" Hydraulic cam was actualy (as far as I know it, I had one) was the last three digits in the part number. Both were very good cams for the small block from the factory. I have fallen ln love with Mopar since my Daughter wated one and I have started building it with all of your help here on this forum. Just my 2 cents from a chevy convert....
Tim (Dad)
:thumleft:
 
I personally liked the "151" with anti pump up lifters, Brown springs (don't ask me on that one) and Blue tipped push Rods with "O" stamped Rocker arms. Don't for get to "Pin" the rocker studs (they were pressed in and some would pull out under hard use (yep I know that one ) HA ! Killer combination on the Street, back in the Day..... It would be nice for someone to figure out the same parallel for the factory Mopar small block cams for us chevy converts......Tim :D
 
Numbers

The Chevrolet '151' Hydraulic Camshaft had a Power Curve of {2800 to 5800 RPM's}
with a 'RED LINE' of 6000 RPM's.

Valve Springs....... #90 lbs. Valve-Closed ~ #200 lbs. Valve-Open

Available In 4-Speed 'Only' Transmissions
* 1965 Corvette - 327/350 HP
* 1966 Corvette - 327/350 HP
* 1967 Corvette - 327/350 HP
* 1968 Corvette - 327/350 HP

* 1965 Chevelle - 327/350 HP
* 1966 Chevelle - 'Not Available'
* 1967 Chevelle - 327/325 HP
* 1968 Chevelle - 327/325 HP

* 1965 Nova SS - 'Not Available'
* 1966 Nova SS - 327/350 HP
* 1967 Nova SS - 327/325 HP
* 1968 Nova SS - 327/325 HP
 
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