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Chevy Big Block Build - The Rat's Back!

The Coolest Rat Part 3

By Mike Petralia

Engine Components For The Coolest Rat Pt. 3
This is a list of the pertinent pieces for this Rat's buildup. While you could substitute some pieces, we wouldn't stray too far, lest you'll suffer power losses and idling woes.

Bearings: Speed-Pro
Block: GM factory 2-bolt 454
Bore/Stroke/CID: 4.310/4.250/496
Cam: Lunati HR custom 255/265 @ .050, .629"/.629", 114 LS
Chain: Lunati billet (PN 93116)
Compression: 10.4:1
Connecting Rods: Trick Flow 6.385" (PN TFS-37638500)
Crank: SCAT 4130 nitrided steel (PN 5-454-4250-6385-2)
Dampener: TCI (PN 870005, internal balance)
Distributor: Holley Annihilator (PN 890-160)
EFI: Holley Commander 950 MPI, 50 lb-hr injectors (PN 300-515)
Head Gaskets: Fel-Pro (PN 1017-2)
Heads: AFR 315CNC (114cc chambers), springs (Lunati PN 73021), Ti retainers (Lunati PN 76113)
Ignition: Holley Commander 950 ECU-controlled distributor
Intake manifold: Holley (PN 9901-202)
Lifters: Lunati HR (PN 72820)
Oil System: Moroso kit (PN 22185)
Pistons: Lunati (PN 1515U4S6)
Plug wires: Holley (PN 50-9801)
Pushrods: Crane custom 3/8" (7.780" intake, 8.760" exhaust)
Rings: Speed-Pro Moly
Rockers: Lunati 1.7:1 (PN 84174)
Spark Plugs: Autolite (PN AR3923)
Throttle body: Holley 2,000-cfm (PN 112-538)
Timing cover: COMP Cams 2-piece aluminum (PN 212)

Afr Head Flow
315CNC intake port, 114cc chamber (reduced from standard 121cc), 2.25" Ferrea intake valve, 1.88" Ferrea exhaust valve, flowed with 2 1/8" exhaust tube @ 28" water depression

Lift Int Exh Ext/Int
flow %
.200 169 146 86%
.300 249 184 74%
.400 312 238 76%
.500 353 271 77%
.600 380 296 78%
.700 386 310 80%
.800 387 315 81%
Average 79%
SOURCES
Air Flow Research
10490 Ilex Avenue, Dept. MMFF
Pacoima
CA  91331
Mechanix Wear
24950 Anza Dr.
Valencia
CA  91355
6-61/-257-0474
www.mechanix.com
Fel-Pro
26555 Northwestern Hwy.
Southfield
MI  48033
Performance Automotive Wholesale (Paw)
21001 Nordhoff St
Chatsworth
CA  91311
Ferrea Racing Components
2600 Northwest 55th Court,
Suite 238, Dept. MMFF
Fort Lauderdale
FL  33309
Powerhouse Products
3402 Democrat Rd.
Memphis
TN  38118
800-872-7223
901-795-7600
www.powerhouseproducts.com
Holley Performance Products
1801 Russellville Rd.
Bowling Green, KY 42101
KY  42101
270-782-2900
www.holley.com
Vrbancic Brothers Racing
1463 E. Philadelphia
Ontario
CA  91761
909-930-9980
Lunati Cams A division of Holley Performance Products
4770 Lamar Ave
Memphis
TN  38118-7403
By Mike Petralia
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