Stafford Speedway Finalizes Limited Late Model Spec Engine Package

Stafford Springs, CT — Stafford Speedway’s tech staff has finalized a rules package for the Limited Late Model division utilizing the GM Part Number 88958602 GMR 350/350 Circle Track Engine with spec modifications. The 602 spec engine is available for a base price of $3,200.00 from Patrick Townsend at Central Chevrolet. Central Chevrolet’s Parts Department can be contacted at 413-781-1410. The cost for the 602 spec motor part upgrades will be $1,600, bringing the total price for a 602 spec engine from intake to pan to $4,800. This $4,800 price is the same price from all three Stafford Motor Speedway approved service centers. A 602 Limited Late Model spec engine must be serviced and sealed through one of the three approved service centers to be eligible for competition in 2009. Tampering with seals will result in severe penalties and loss of eligibility of the engine to compete in the Limited Late Model division. The 602 Spec Engine package includes the following upgrades.

– Edelbrock 2913 4-Barrel Intake Manifold

  • #80541-1 Holley 650 cfm carburetor
  • Harmonic Balancer Power Bond P/N PB1012SS ? Comp Cams P/N 981-16 valve springs
  • 3″ exhaust
  • Overall Car Weight 3,000 pounds
  • 54% left side weight allowance
  • Kooks Stainless Steel mufflers P/N R300-10
  • Kooks Stainless Steel Headers P/N 15055 or Flow Rite Stainless Steel Headers P/N FR275FF
  • Gear Ratio: It is recommended to have a 3:25 to 1 ratio for GM Rear Ends and a 3:25 to 1 ratio for Ford Rear Ends. It is recommended that the transmission have a 1:50 ratio when utilizing the recommended gear ratios.
  • This 602 spec engine with parts upgrades and an exhaust system has been dyno’ed at 400 ft/lbs. of torque at a peak of 380 horsepower.
  • The use of an ARP New Era Adjustable Rear Wing
  • 2009 Mid-American NGB body with New Era Adjustable Wing (Note: These bodies have two more inches of clearance under the hood, designed for the high intakes on the crate motors.) The ARP website can be found at www.arpbodies.com.
  • 2009 Mid-American NGB body with New Era Adjustable Wing (Note: These bodies have two more inches of clearance under the hood, designed for the high intakes on the crate motors.) The ARP website can be found at www.arpbodies.com. The following NGB bodies are approved for any Limited Late Model car that is running the 602 spec engine package:

Due to the anticipated increase in demand for this engine package, Stafford Motor Speedway has added T/A Engines in Plainville, CT to its Approved Service Center list for the 602 Limited Late Model Spec Engine package. Approved Service Centers for Limited Late Model 602 Spec Engines:

T/A Engines Plainville, CT 1-860-747-6713

RaD Auto Machine Ludlow, MA 1-413-583-4414

Horsepower Engineering Ellington, CT 1-860-871-2020

Sources: Scott Running/Stafford Motor Speedway PR