318 LA cam question for the mopar gear heads!
I'm fixing to pull the 318 out of my 69 notchback barracuda because the valve guides need replaced for sure. So while I got it out I want to do a complete check and replace any and all parts necessary. I will go back basically stock other than if it needs to be bored to 30 over etc. I plan on taking the head and block to my machine shop to have them vatted and checked etc. I will go back with a edlebrock intake and edlebrock 600cfm 4v carb. I have just installed dual exhaust. MY QUESTION is, should I go back with the stock cam, hydraulic; duration at .050 lobe lift; 192 exh.; 181 int.; 109 degrees lobe seperation or use a
Stage 1 high performance. May not be computer compatible. Use flat followers. .050" Duration-204/214; Cam Lift-.281/.296; Lobe Center-108/116.050) these are the two options that I was given by the parts book at my auto parts store. I appreciate any insight on this. All comments welcome. Thanks in advance!
If you're staying with the 'basically' all Stock Theory,
The Comp-Cams #260-H {#20-210-2} 'High Energy' profile is highly recommended
by the Cam Technical Advisors at Comp-Cams.
Especially for a light A-Body {1969 Barracuda Notchback} with a Shipping Weight of #2900 lbs.
* Lift ...................... .440"/.440"
* Duration................ 260*/260*
* Duration @ .050" ... 212*/212*
* Overlap ................. 40*
* LSA ...................... 110*
* Centerline ............. 106*
It is a 'Great' Camshaft for a basic 318, with a good Intake, mid-sized 4-Barrel and Dual-Exhaust System.
This Camshaft provides great Torque, and with a snappy Throttle-Response.
Though you're just doing a 'basic rebuild' on the 1969 318/230 HP, it would be beneficial to have the Machine Shop deck the Block to 'specifications' with the Flat-Top Pistons
@ -.029" below deck.
The 318 requires proper Compression {9.20-1} to gain power with a
'Low-to-Mid' Street Performance Camshaft.