HOLDEN
HOLDEN 304 308 Blower Kits
MANIFOLD
These Kits are priced/sold less the manifold

You can order a 308 or 304 manifold direct from Newby Engineering in Sydney Australia
Ph 0061 2 9604-5863, they make manifolds for the early 308 and 304VN engines.

These kits use either Small Rotor 871 with a Cast Case (360 cubic inches per revolution) or the short rotor 671 with a Billet Case (327 cubic inches per revolution). These blowers will produce a better response on Street/Strip performance 304/308/350/400 cubic inch engines. The blower with the squarer side ribs is the Billet case 327ci blower, and the Blower with the rounded more flowing side ribs is the Small Bore cast case 360ci 871.

To help put Blower sizes in perspective a std bore every day large bore 671 is 411 cubic inches per revolution and to help even more the blower shop will supply their smaller 250 cubic inch blowers in their street Big Block Chevy kits and run them on Big Block Chevy engines up to 540 cubic inches in size. These blowers are sized better in 304/308/355/400 street applications and will give sharper engine response than say a large rotor 6-71 running slower. Of course if the engine is a serious performer then you can step up to a large rotor 6 or 8-71.