Most engines have the following problems.
Small block chevy crankcase ventilation.
1955 67 gm small block crankcase vent tube assembly.
Since 2003 jeff has held various positions at car craft including editor has written books on small block chevy performance and even cultivated an impressive collection of 1965 and 1966 chevelles.
Emission reduction adaptor.
Discussion in the hokey ass message board started by billy the kid may 29 2006.
The very first emissions device was the positive crankcase ventilation pcv valve.
Breathers might be sufficient but running a real pcv system and creating real.
61 63 f100 f250 nos ford c1te 6a665 a crankcase vent.
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The crankcase ventilation system is more important than people know.
Now he serves as a regular contributor to onallcylinders.
Piston rings leak slightly and create pressure.
The orginal sbcs that had the oil fil tube in the front also had a road draft tube for crankcase ventilation which you don t have of course.
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Nos oem gm 1964 76 chevy corvette crankcase vent hose connector sct3.
Small block chevy venting question.
Later model ls engines come equipped with a pcv valve grommet location but our ls327 crate engine did not so.
When there s a problem it can cause oil sludge build up oil leaks and oil consumption.
Before 1963 all small block chevy engines used a road draft tube to ventilate the crankcase.
Valve guides leak slightly and create pressure.
To make this work there was a large hole at the top rear of the engine block inside the lifter valley that led to a breather tube at the rear of the engine.