383 Chevy Short Block - Torqbot

The Rebuilt Mouse That Thinks It's A Rat

Mike Petralia Jun 1, 2004 0 Comment(s)

Testing The 'Bot
After it was built, the dyno staff at Speed-O-Motive bolted the 'Bot onto their DTS engine dyno for a full day's flogging. It turned out that it didn't take a whole day to see that this thing was like a gorilla. Basically, everything worked great right out of the box. We set the HEI at 36 degrees total advance and made sure fuel flow was at a steady 6 psi. The dyno pulls we made with each carb showed promising results across the board. Although peak power figures were slightly lower than what Edelbrock's 383 made, our engine was almost 30 ci smaller, so we knew we had a winner here.

Sucp_0406_15_z 383_chevy_short_block Headers 4/12

The same set of 1 3/4-inch headers were used in all tests. 1 5/8-inch headers may have made a little more torque, but we didn't have a set to try out.

Torqbot Parts List
Short block parts from Powerhouse
*Crank PN 661-861-0125
*Pistons PN H345NCP .040
*Rings Speed Pro E251K
*King Bearings, Mains MB 557AM, Rods 807AM
*Pioneer Balancer & Flexplate
*Federal Mogul gasket set PN *260-100
Approx price $500

Valve train
*Isky Hyd Roller cam PN 201265/272
*HR lifters PN 2020
*Pushrods PN 203-96
*Timing set PN 300TS

Edelbrock Equipment
*Cylinder Heads-E-Tec 170 PN 60979
*Intake-Perf RPM Air Gap PN 7516
*Carb-AVS PN 1806
*Valve Covers PN 4153
*Water Pump PN 8811

* Ignition-Performance Distributors HEI w/ Live Wires
* Oil system-Moroso

*Machine Work & Assembly Speed-O-Motive

Sources

Performance Distributors
Memphis, TN 38132
901-396-5782
www.performancedistributors.com
Moroso Performance Products
Guilford, CT 06437
203-453-6571
www.moroso.com
Speed-O-Motive
West Covina, CA 91790
626-869-0270
www.speedomotive.com
Lunati LLC
Olive Branch, MS
662-892-1500
LunatiPower.com

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