400ci COME Racing (Carb) Street engine
Being from a family of people whom 99% of which were murdered in Hitlers Nazi Holocaust gives great significance to the upcoming ANZAC day commemorations. I vividly remember watching the ANZAC day marches on the side of Swanston St. here in Melbourne over 45 years ago as a little boy enthralled by the vision of these Aussie heroes marching towards the Shrine of remembrance. Yes their numbers have thinned, but the debt of gratitude we owe to those and the original World War 1 diggers is immeasureable. We are privileged to live in a free country provided to us by the sacrifices of these gallant ones. We should not take this country for granted. Too many expect everything as a birthright, it's not, you must earn your position in a society like ours by remaining good citizens and always respecting the deeds of people like the ANZACS and remembering them forever as the true creators of our free safe society. "Lest we forget"
For all the rev heads, getting back to the subject of todays post is the birth of another one of our all Aussie 400ci COME Racing alloy engines This one destined for street use in an early model Commodore should be quite a fun play thing.
Fitted with our latest 2004 series unported alloy VN style heads the 400ci short block has our usual nodular iron 3.75" stroke crank, 4340 steel "I" beam COME 5.850" length rods and Keith Black pistons. Our COME CSBR-646 (new design profile) hydraulic roller camshaft and vertical bar custom roller lifters.
Final compression ratio is just over 11:1 for successful use on 98 octane pump fuel. The customer had a few restraints to our plans for this engine and insisted on keeping everything under the bonnet without scoops, so we fitted a Redline low rise single plane intake and 1" adapter/spacer and Holley 750 (4779) double pumper carb. Ignition was via a Bosch HEI curved to suit the combo. Engine was dyno tested with off the shelf Pacemaker 1 3/4" extractors to suit typical VN headed early Commodores.
Engine made 516 bhp @ 6000 rpm and 496 ft.lbs torque @ 4500 rpm in the dyno room. Who needs a Big Block Chev with this little animal under the bonnet? Best part is the engine has 450ft.lbs torque as low as 3000 rpm so a small converter is all that is needed as well as typical highway diff gears. By the way with an engine weight the same as an Ecotec V6 you will improve the handling and stopping not to mention better acceleration over any other V8 available today.
As an experiment, we fitted one of our Twin Thottle body EFI manifolds and instantly made over 530 bhp and over 500ft.lbs torque.
The carb version shown here costs $20,000 for the long motor outright and dyno run in. Carb and ignition are an extra $1200.00. The EFI version with our complete Twin Throttle body intake, fuel rails, injectors, distributor, Delco computer and Powerboard with custom real time tuned program is $24,000
With either, all you need is to add a starter, alternator, engine mounts and a few other small bits and you have the most cost effective street engine for virtually any modern or retro vehicle or kit car. Full race dry sumped versions also available.
Call (03)9571-4204 or email us at come@comeracing.com for further details or if you have specific questions.
Sam
10:23:08 AM 
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