2021-22 Circle Track Catalog

Engine Hardware Finishing Kits Each kit includes dowel pins, cam bolts, seal housing compo- nents, woodruff keys, cam eccentrics, etc. Part No. Description DURFKC-1

Cam Bearings American-made bearings for new or used blocks have the surface characteristics of babbitt and will withstand high valve spring pres- sures. Use standard performance bearings with hydraulic or solid lifter

DURF-18

SB Chevy 283-400 without Seal Housing

cams, or high-performance bearings with roller cams. Most are DYDLODEOHZLWKÀXRURSRO\PHUFRPSRVLWHFRDWLQJIRURLOUHWHQWLRQ and less friction; some are available in .010", .020", .030", and .040" oversizes. Specify size when ordering.

DURFKC-1HP SB Chevy 283-400 without Seal Housing High-Performance Kit. Also Includes Cam Lock Plate, Oil Filter Adapter Bolts, and Transmission Dowels. DURFKC-1A SB Chevy 350-400 with Seal Housing, Includes Roller Block DURFKC-6B GM LS, 1998-00 DURFKC-7B GM LS, 2001-13 DURFKF-1 SB Ford 289-351W, Late Model Carbureted DURFKF-1A SB Ford 302-351W, EFI, Includes Roller Block DURFKP-1 SB Chryster 318-360 Carbureted/EFI, Includes Roller Block Miscellaneous Dowel Pins Part No. Description

High Performance Coated

Standard Performance

High Performance

Application

Chevrolet

SB Chevy, 1964-99 283-400 SB Chevy, 1955-63 265-327 SB Chevy “Bowtie" Block SB Chevy Brodix Aluminum Block SB Chevy Dart “Little M"/SHP

DURCH-8 DURCHP-8 DURCHP-8T

DURCH-4 DURCHP-4

— DURGMP-8 DURGMP-8T

DURCH-5-3 DURCHP-5-3

— — DURDT-1T — — DURGMP-2T — DURCHP-12 DURCHP-12T

Dart “Iron Eagle"

Dart “SHP Pro" Block/BB Chevy

DURAD-023 GM Hi-Perf. V-8 Transmission Dowel Pin, .621" O.D. x 1.550" Long, Solid DURAD-326 GM LS 4.8/5.3/6.0L Dowel Pin, .642" O.D. x .516" I.D. x .500" Long, Hollow DURAD-679 Chevy V8 Crankshaft Dowel Pin, .4386" O.D. x .813" Long, Solid

GM “Rocket" Block — DURGMP-1 DURGMP-1T GM LS, 2.326"-2.328", 1997-06 DURCH-10 DURCHP-10 DURCHP-10T GM LS, 2.346"-2.348", 2003-09 DURCH-23 DURCHP-23 DURCHP-23T GM LS, .775" Wide, 2006-13 DURCH-25 DURCHP-25 DURCHP-25T Dart LS Next, 2.298", O.D. Groove with 3-Hole — DURGMP-10 DURGMP-10T GM LSX — DURGMP-25 DURGMP-25T Ford SB Ford, 1962-99 221-351W DURF-18 DURFP-18 DURFP-18T SB Ford “SVO" Block R302/S302 — DUR351HP DUR351HPT Ford 4-Cylinder, 1983-88 2.0L; 1974-97 2.3L DURF-34 — —

JOSH HIGHBAUGH

Crate Dirt Late Model Stainless Steel Headers +LJKYHORFLW\H[KDXVWKHDGHUV¿WGLUWODWHPRGHOVXWLOL]LQJWKH*0³ crate engine. Headers are manufactured from 17-gauge stainless steel IRULQFUHDVHGH[KDXVWÀRZDQGDGGHGGXUDELOLW\DQGLQFOXGHVWHSSHG 1.625"-1.750" primaries and 3" collectors. Sold complete with gaskets and IDVWHQHUV2IIHUHGWR¿WDYDULHW\RISRSXODUFKDVVLV

Primary Dia.

Collector Dia.

Part No.

Description

Fits American Made, Barry Wright, Morris, Rocket, Swartz, and Others with 2-5/8" Offset & 6" Setback DTH711-65810* Crate Dirt Late Model Headers 1.625"-1.750" Fits Bernheisel, Dirt Tek, Lazer, Mastersbilt, Rayburn, and Warrior Chassis DTH711-65910* Crate Dirt Late Model Headers 1.625"-1.750"

3"

3" * Sold complete with DTH772-06322 Torque Boosters, which offer increased horsepower and torque between 2500-4200 RPM without affecting high-end horsepower.

80° Exhaust Elbow DTH780-80351 Mild steel, 3-1/2" dia. elbow with 80° bend is often required when MRLQLQJKHDGHUVWRPXIÀHUV

Exhaust Extension DTH780-00314 Common to crate engines, 14" long

extension helps equalize exhaust

ÀRZZKHQXVHGZLWKDQƒHOERZWRURXWHH[KDXVWIURPGULYHU¶V side of dirt late models toward the rear of the car. 14" long x 3" O.D. extension, mild steel. Sold each

335

CIRCLE TRACK 2021-22

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