BLOCK :The block is a standard 2 bolt block that has been filled up to the water pump in / outlets with building grout to strengthen the bore walls. The bores have been bored .030" over using torque plates. An oil restrictor kit has also been fitted. All part line flash has been ground back flush & all sharp machining edges have been de-burred.

CRANKSHAFT : The crankshaft is a standard Australian cast crank, there is no real need for the expense of a steel crank as long as the cast crank it machined properly nor do I believe their is a need to get a U.S cast 4MA crank. The Australian crank has a Nodularity of 70% minimum they usually run around at 90%+ Nodularity.
Modifications to the crank are the stroke has been increased from the standard 3.5" to 3.66" (Giving a cubic capacity with the .030" over bore of 373 c.i) The Pin Journals have been turned down to 2.1" (Large journal Chev) the mains are standard size. The all part line flash has been de-burred back to parent metal.
 

CON RODS : The rods are Manley Aluminium's, with a 5.7" centre distance, the rods have the same dimensions as 350 Chev rods.

PISTONS & RINGS : Pistons are Speed Pro 12 1/2 to 1 lumpy tops. The gudgeon pin diameter has been increased to use Chev gudgeons to suit the rods. The tops have been smoothed up with emery paper. The rings are Childs & Albert "Zero Gap seconds".

HEADS : The heads are cast iron big port heads (4 V's) The heads are machined for 7/16 screw in studs & guide plates. The heads are fully ported & the intake ports floors have been filled with 1" of epoxy. The exhaust ports have 1" blocks of cast iron welded in place. The purpose of filling in the port floors is to eliminate the dead flow areas of the ports, these heads were made to big. A additional benefit of filling in the ports is the increased port velocity that equates into a throttle response & torque gain. The heads flow 650 hp.
Roller rockers are by Yella Terra, Springs are Chet Herbert triples. valves are stainless steel Manley's 2.19" & 1.71". Push rods are Crane 5/16".

CAM : Is a Chet Herbert Solid Roller with 260 & 270 Degrees of duration @ .050".  Lift is .700" on both, Roller Lifters are by Competition Cams.
Rev range of cam is 4,000 to 7,000 rpm.

INDUCTION : Intake manifold is a Jack Roush S.V.O intake made for the S.V.O B302 aluminium heads, this has been milled down to line up with the ports on the cast Iron 4 V heads. The manifold ports have been matched to the heads. The manifold is externally polished.
The carburettor is a "Carb Shop" Stage 3 , 850 Holley double pumper, that now flows 990 cfm.

NITROUS OXIDE : The nitrous kit is a N.O.S Dual Stage Big Shot, jetted with 75 hp 1st stage & 175 hp 2nd stage. The solenoids used are Pro Shot for the nitrous side & Cheater for fuel.
There are 2 polished 10 pound bottles stored in the boot.