Im needing help with building a motor to turn 7000 rpm weekly and have torque and horsepower around 400 .i've got a 89 vette block and a set of vortec heads that are stock. Gm performance nodular crank 3.48 stroke i want to use. im running a racing 500cfm holley 2 and a edelbrock vortec performer intake. give me some opinions as to ways to go and blow these boys away. got about 34oo saved up. thanks

 

1) All block, cylinder head, exhaust manifold, and intake manifold casting numbers shall be verified/validated and traced to stock factory part numbers/casting numbers except as noted.
2) All block casting numbers shall be verified/validated and traced to stock factory part numbers/casting numbers and/or OEM replacement casting numbers. No aftermarket blocks. Must be OEM Cast Iron Blocks. GM approved block numbers are: 3892657, 3914660, 3914678, 3932388, 3932386, 3956618, 3970000, 3970006, 3970010, 3970014, 10066033, 10066034, 10066036, 10243880, 10066098, 10105123. 14010207, 14010209, 14010287, 14016376, 14016379, 10054727, 14088528, 14088548, 14088552, 14093638, 14101148. FORD and CHRYSLER - Any OEM production block. No GM Bowtie, Ford SVO or Chrysler W components allowed. Engine casting numbers cannot be altered.
3) No porting or polishing any engine component. No titanium engine parts.
4) No Aluminum, Titanium, or Carbon-Fiber components allowed.
5) Atmospheric conditions and equipment limitations suggest a .3 tolerance in compression limit. Therefore, compression measurements greater than .3 over compression rule means disqualification.
6) Screw in studs are allowed, push rod guide plates are optional, no stud girdles.
7) No fuel injection, turbo combustion's, and diesels.
8) Maximum cubic inch is 363 for GM, 364 for Ford, 370 for Chrysler.
9) Cannot alter lifter bores.
10) Oil splash plates under the valve covers are allowed.
11) Stock rods or aftermarket rods are approved. OEM or OEM replacement steel rods only – GM 5.7 or 6-inch rod allowed. Cap screw allowed.
12) OEM or OEM replacement steel crankshaft only - cannot be lightened. No aero wing, bullnose, knife edge, undercut or drilling of second or third rod throws.
13) Steel oil pans only. Racing oil pans allowed. A 1-inch inspection hole with screw-in type plug required in middle of oil pan above the baffling assembly for inspection of rod and crankshaft throw.
14) Steel roller tip rocker arms allowed.
15) Camshaft limited to hydraulic or flat tappet (solid). No mushroom or roller lifters allowed. No roller cams allowed. CANNOT ALTER LIFTER BORES.
16) Aftermarket pulleys are allowed.
17) Stock mechanical water pumps with fans required.
18) OEM firing order cannot be changed. (GM: 1-8-4-3-6-5-7-2).
2012 Lakeside Speedway Factory Stock Rules
Page 3 Factory Stock
19) Engine must be located no further back than where the #1 spark plug is even with the front ball joint. Aftermarket engine mounts allowed, including mid-plate.
20) Engines must be within same corporate line as body. (G.M. to G.M., Ford to Ford, Chrysler to Chrysler).
21) Radiator must remain in stock location with overflow vented to the ground between the frame rails. Aftermarket radiators allowed.
22) Wet sump oiling system only. Accumulator allowed; cannot be located between seat and door bars.
23) Flat top or dished pistons only, no gas-ported pistons
24) May use oil restrictors.
25) Oil pump must mount in stock position.
26) Stock stroke for block.
27) INTAKE: Unaltered, approved OEM cast iron low rise, two- or four-barrel. Only unaltered (no porting or polishing) aftermarket aluminum intakes allowed are: Weiand GM #7547-1; Ford #7515, #8023 or #7516; Chrysler #7545; Edelbrock GM #2701, #2101, #7104, and Vortec only - #2116; Ford #7121 or #2121, #7181, #7183; Chrysler #2915 or #2176. Cooling lines allowed on aluminum intakes.
28) 9.1. to 1 Compression Engines: HEADS: Steel only. Must be unaltered approved OEM.
aa. Those who use VORTEC heads (casting numbers 12558062/10239906 only) must use the Edelbrock 2116 SBC VORTEC Performer Intake.
bb. Those not using VORTEC heads will be required to use OEM heads with casting numbers verified/validated and traced to stock factory part/casting numbers and may use the Edlebrock 2101 or 7104 Performer RPM Q-Jet Intake Manifold or other stock factory automotive intake manifold that can be verified/validated and traced to a stock factory part/casting number.
cc. Those who use the Magnum heads (casting/part number 53006671/53005723 only) may use the MOPAR Performance Aluminum Intake (part number 5007381) or other stock factory automotive intake manifold that can be verified/validated and traced to a factory stock part/casting number. Those not using the Magnum head will be required to use OEM heads with part/casting numbers verified/validated and traced to stock factory part/casting numbers."
29) Additional Engine Option: HEADS: Steel only. Must be unaltered approved OEM
aa. No compression rule.
bb. Minimum 70 cc combustion chamber. Only GM OEM approved head numbers are: 14079267, 3986336, 3986339, 3986339X, 3986388, 3932441, 376445, 3928454, 3932454, 3876487, 3973487, 3973487X, 3973493, 3951598, 468642, 330862, 333882, 3998920, 3998991, 3998993, 3998997, 3970126. Ford - any OEM production head with inline valves. No canted valves and no SVO heads. Chrysler - any OEM production head with inline valves. No canted valves and no W-2 heads. May use Engine Quest (EQ) Stock Replacement (SR) cylinder head, part number CH350I, head must remain as produced, seat angles and valve sizes can not be changed: three angle valve job only (absolutely no casting removal in valve pocket of EQ head, for any reason). Maximum size valves on these GM heads are 2.02 inch intake and 1.60 inch
2012 Lakeside Speedway Factory Stock Rules
Page 4 Factory Stock
exhaust. On Ford and Chrysler maximum 2.04-inch intake valves and 1.70 exhaust valves. GM - 1.250 inch maximum O.D. valve springs.
3. CARBURETOR.

 

Just looking at the rules you posted, you'll need to find a replacement block. (All 89 Vette blocks have reduced lifter bore heights for roller lifters for roller cams which are not allowed per rule #15 nor can you alter the lifter bores to support a flat tappet cam.)

Just looking at the rules you posted, here are some of my thoughts:

Try for a four-bolt truck block that's in decent shape especially if you intend to turn high RPM every week. That brings into question the choice of a Holley 500 CFM two barrel carb. Just using your target of 7000 RPM and a volumetric efficiency of 85% (since the GM valve springs are limited to 1.25" outer diameter) indicates that a 600 CFM carb would be needed. (Use this link for an on-line CFM calculator.

While the VORTEC heads have pretty decent flow, I would imagine that a stock, unaltered set of heads would support a 6200-6300 RPM redline with a matched, high-lift flat tappet cam. (You would need to massage the stock 500 CFM Holley to support the flow needed at that RPM.)

Since you can only use dished or flat-top pistons and the minimum combustion chamber displacement is 70 cc's, you'll need to deck the block and use a thin, steel shim head gasket to increase your compression ratio to compensate for whatever cam that will match the power curve you need. (I didn't understand rule #5 that set a tolerance limit of .3 for compression ratio since rule #29aa states no compression rule. You'll need to know if there is a compression limit so you don't get disqualified for too much compression any given event.)

Be sure to use aftermarket steel rods and make sure that your chosen rotating assembly is balanced by a professional engine builder to make sure the engine survives high RPM from week to week.

Since you didn't say what, if any, experience you had building circle track engines, try obtaining a copy of David Vizard's "How to Build Max Performance Chevy Small Blocks on a Budget. Lots of good info there. Good Luck!