Chevrolet in line 6 cylinder 4 barrel intake manifold by Aussiespeed fits Chevy 250, 292 L6 engines. This 4V performance inlet manifold offers high velocity port runners, divided centre plenum allowing for even flow to all runners. The Aussiespeed Chevrolet 6 inline manifold is available in to suit squarebore Holley 4 barrel carbs. The manifold is machined and drilled to accept either forward facing or sideways mounting carburettors.
The dual bolt pattern pattern accepts Square bore Holley, Quick Fuel, Edelbrock Carburettors from 390 to 850 in both forwards and sideways mounting. The plenum floor is designed to catch fuel drop and re introduce it as air speed increases.The plenum has a divider placed in the plenum to lengthen the centre runner and reduce plenum volume .The manifold has one x 3/8 npt vacuum take off on the rear of the manifold for brake vacuum and auto transmission fitting.
The taller plenum we have found offers optimum performance across a wide rev range. The plenum can be machined lower for hood clearance.No Adapter required for mounting the carburettor side ways as the intake manifold comes drilled for both positions.