383 Holden Street-Strip daily driver
So many of the calls we receive almost daily are from customers asking about "THE IDEAL COMBINATION". Well our job is to take the guesswork out of building performance engines everyone can live with while maximising the performance and reliability potential. In other words the BEST VALUE for MONEY combinations that satisfy performance, reliability, driveability and even fuel mileage parameters to an optimum at a value for money overall cost.
Today this is very feasible. In fact it has never been more possible to produce combinations that fulfil ALL the requirements of today's performance enthusiasts. Case in point is the Holden Stroker V8 engine featured above. This is a 383ci (6.3 litre) stroker fitted with the following components in a truly bolt together form by ANYONE!
1) COME 383 forged piston stroker kit, nodular cast 3.750" stroke centre counterweighted crank, forged 4340 steel "I" beam rods with ARP bolts, King rod and main bearings, Hastings moly rings with the whole assembly internally balanced. Kit cost...$3000.00
2) COME 2009 VN style alloy head package with 2.02" and 1.60" stainless valves, dual 1.450" springs and moly retainers, positive seals, full 3 angle valve job. Heads flow over 580 bhp @ .700" lift but more importantly they flow over 560 bhp @ .500" lift where the cams likely to be used in this combo are designed to work at. We've spent over 10 years developing this latest combustion chamber and the results definitely show it was worth the wait. Exhaust flows over 116 cfm @ 10" depression. Complete heads cost...$3500.00
3) COME CLH-775 hydraulic flat tappet camshaft and lifters. Cam and lifter cost...$550.00
4) Block machinework: Hot tank acid bath cleaning, remove and replace camshaft bearings, line hone main bearing tunnels and fit main stud kit, clearance grind for swing of stroker components (you will never hit through water jackets with our 383 "I" beam rod kit), bore and torque plate hone cylinders to .030" oversize, prep clean and mock assemble then deck block to square to set piston deck heights, fit new brass welsh plugs. Cost of block machinework at COME Racing workshop...$2500.00
5) COME Racing alloy valve covers...$550.00 (can also use stock factory VN-VT covers)
Other off the shelf parts needed...
1) Redline Hi Winder low rise single plane intake
2) Hi Energy or other Street oil pan with extra capacity and clearanced for 383 crank
3) Bosch HEI with correct spark curve or complete adjustable ICE ignition system
4) Any good quality alloy roller rocker set in 1.65:1 rocker ratio
5) Screw in studs, guide plates and hardened pushrods
6) Stock GM or Austral cast iron oil pump
7) Rollmaster timing chain and gear set
8) Holley # 4779 750cfm Double pumper carb and open hole alloy 1" carb spacer...Speco brand
9) Powerbond steel harmonic balancer
10)Full gasket set either Genuine GM for VN-VT 5 litre or aftermarket "graphite" gasket set
As one can see it's really a no brainer. All parts on this engine are "off the shelf". The intake manifold was checked for port match and corrected as required to match intake ports. The carb as shown in our tests did not even have a jet change and would be fine as is for 90% of locations around Australia. The ignitions tested were both a stock Bosch HEI with 26 degrees total timing @ 3400 rpm. The ICE ignition was supplied by our customer and was calibrated much more easily to similar specs with the flick of a switch on the ICE control box. Results were the same when used on BP 98 pump fuels despite the 10.9:1 compression ratio. Once again, this is a by-product of the fantastic efficiency of the latest combustion chambers in our 2009 heads.
Just buy this bunch of parts, get your block machined and bolt together this 480+BHP (357KW) street engine at a low 5500 rpm with brute 465 ft.lbs torque (630nm) at 4500 rpm and over 400 ft.lbs as low as 3000 rpm. Imagine this engine in any model Holden from a HK through to VL Commodore or Torana. In the lighter cars this engine will run 10's all day and only needs a set of Pacemaker or similar Tri-Y 1 3/4" primary extractors and a decent dual 2.5" or 3" system to maximise results. Once again, off the shelf parts with only needing the collectors modified to dual 3" outlets preferably.
We've spelled it out for you...a combination you cannot beat for the money. More importantly there are no exotic parts, custom modifications, or spin from so called experts claiming they can do a "special custom" combination for you for lots more money with potentially dubious results. Don't be misled, this is a real deal which will satisfy all your requirements for a weekender, daily driver, bracket racer and long distance cruiser on pump fuel.
It's never been easier to make LS1 type power reliably from your Holden V8...what are you waiting for? See this engine running http://www.youtube.com/watch?v=2e6Dq5qBnG8
Call us on (03)9571-4204 or email come@comeracing.com for further assistance or to order any of our products. Trade customers please call or email workshop@comeracing.com
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