Originally Posted by jgh64pkup (Post 3589967)

might be getting som subs and amp for the ferd im trying to trade the toolbox for them
its 2 kicker competition 12s with individual boxes 1200 watt kicker amp and all the wiring

Originally Posted by jgh64pkup (Post 3590793)

i have to talk to him today about it
thanks john for the title change :thumbs:
oh and back to the yenko
when i get the engine turning above 4 grand it strats blowing oil out of the dipstick and the harmonic balancer seal
i just changed the balacer seal and put a sleeve on it
im thinking its too much crank pressure the only vent i have is the pcv
should i replace the oil cap with a breather?

Originally Posted by jgh64pkup (Post 3591093)

2 what

Originally Posted by lakeroadster (Post 3591272)

It's not so much the number of the breathers as it is the capacity of the breather and where is is located. Correct crankcase ventilation is really important.

For what it's worth..........................

I built a '72 350 SBC for my fenderless model A and wanted the motor to look like a mid 60's SBC. I used Corvette aluminum finned valve covers and put the oil fill tube in the intake manifold and used a twist on cap.

Basically the motor had no crankcase ventilation.

Shortly after I had it on the road and gave it a few hundred miles to break in the motor I ran it through the gears, shifting it from first to second at about 5000 rpm. In the rear view mirror I saw a ton of smoke. I pulled over at the next opportunity and the Holley mechanical fuel pump had blown a gasket. This was becasue of piston ring blow by pressurizing the crankcase.

I installed a large "Moon" breather on the valve cover and installed a pcv valve in the oil filler neck, basically same set-up as they used on late 60's vettes.

Haven't had any problems since.

You can see the "Moon" breather in the photo below.

Originally Posted by jgh64pkup (Post 3591363)

so ditch the pcv and put two breathers on it
Damn Chevys :lol:

Originally Posted by lakeroadster (Post 3591377)

Nothing wrong with using the pcv valve.. you just need some additional breathing room.

And those old "breather" tubes meant the blow by oil ended up underneath your car, on your tranny and on the road.

Originally Posted by lakeroadster (Post 3591272)

It's not so much the number of the breathers as it is the capacity of the breather and where is is located. Correct crankcase ventilation is really important.

For what it's worth..........................

I built a '72 350 SBC for my fenderless model A and wanted the motor to look like a mid 60's SBC. I used Corvette aluminum finned valve covers and put the oil fill tube in the intake manifold and used a twist on cap.

Basically the motor had no crankcase ventilation.

Shortly after I had it on the road and gave it a few hundred miles to break in the motor I ran it through the gears, shifting it from first to second at about 5000 rpm. In the rear view mirror I saw a ton of smoke. I pulled over at the next opportunity and the Holley mechanical fuel pump had blown a gasket. This was becasue of piston ring blow by pressurizing the crankcase.

I installed a large "Moon" breather on the valve cover and installed a pcv valve in the oil filler neck, basically same set-up as they used on late 60's vettes.

Haven't had any problems since.

You can see the "Moon" breather in the photo below.