Page 467 - VSI Master Catalog
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pro/raCe offerS 3 CategorieS of harmoniC BaLanCerS
#1 pro/raCe
• When racing and extreme duty use is your only direction, you need a PRO/RACE Harmonic Balancer, Exceeds SFI Spec. #18.1 and spin tested to 18,000 RPM!
#2 pro/Sport
• When your racing is still a weekend sport, the PRO/SPORT is a the balancer for you, affordable SFI damper designed for the Sportsman/Bracket Racer.
#3 pro/Street
• When all you need is a quality replacement, PRO/STREET Harmonic Damper is a tough OE replacement style bonded Nodular iron damper. Not recommended for racing use.
# 1 pro/raCe harmoniC BaLanCerS
• “All steel” construction. Exceeds SFI Spec. 18.1 – Spin tested to 18,000 RPM. Specially formulated bonded Elastomer.
• 100% CNC machined. Billet steel inertia ring and hub.
• Bolt-on counterweight, for use with external or internal balance. 60° of engraved timing marks (40° on SB Ford models).
Easily installed – Instructions included.
#2 pro/Sport harmoniC damperS
• Meets SFI Spec. #18.1 - Spin tested to 12,000 RPM.
• Fully machined from high quality carbon steel. • 60° of permanently engraved timing marks
(40° on SB Ford Models). Pressure bonded Elastomer, impossible to separate!
pro/Sport Balancers
part #
CheVy PRA34262# PRA34263 PRA34264 PRA34265 PRA34266 ChrySLer PRA34277 PRA34278 PRA34279** ford PRA34269 PRA34270 PRA34271 PRA34272 Counterweights
PRA35266
PRA35264
PRA35269
PRA35270
PRA35578
# Not drilled to accept 400 Chevy counterweight
** Fits Chrysler 440 forged crank, 361-383 “B” engine forged cranks(62-70), and 413-426. Also fits Race
and Street 426 Hemi with slight TDC adjustment as detailed in instruction supplied with damper
#3 pro/Street harmoniC damperS
• Nodular Iron Harmonic Dampers are 30% stronger than gray iron.
• Bonded Elastomer, minimizes potential for the outer ring to move.
• Removable counterweights externally balanced models feature bolt-in counterweight that make it easy to switch for sale an internally balanced SB Chevy or BB Chevy engines.
application
273-360 Int 318-360 Ext.
283-350
396-427
454 Ext. 283-350 Int. 400 Ext.
383-440, 426 Hemi
Int.
289-351W, 28.4 oz balance 302 5.0L, 50 oz balance 4.6L 1996-later
429-460
Ext. 11.01 6.61 Ext. 11.81 6.61 Int. 9.24 6.61 Int/Ext 9.96 6.61 Wgt.
1.10
type Wgt. dia.
Int.Only 10.15 6.61
Int.
12.79 7.01 14.13 7.01 10.14 6.61 11.29 6.61
11.14 7.01 11.93 7.01 10.80 7.01
part #
CheVy
PRA64262
PRA64263
PRA64264
PRA64265
PRA64266
PRA64267
PRA64268
for Supercharger use
type Wgt. dia.
Int. 10.37 5.61 Int. 13.21 7.01
Ext. 14.53
Int. 10.37 6.61
Ext. 11.56 6.61 Int. 13.21 7.01 Ext. 14.53 7.01
Int. 10.37 6.61 Int. 13.21 7.01
Int. 11.34 7.01 Ext. 12.26 7.01 Int. 11.03 7.01
Ext. 11.80 6.61 Ext. 12.10 6.61 Int. 10.25 6.61 Int./Ext. 10.25 6.61
application
Chevy 283-350 Chevy 283-350 Chevy 283-350 Chevy 283-350 Chevy 400 Chevy 396-427 Chevy 454
273-360
318-360
383-440, 426 Hemi
application
289-351W, 28.4 oz. 5.0L 302, Late 50 oz. 4.6L 2V/4V 96 & later 429-460
283-350 283-350 396-427 454 283-350 400
350-403-455
350-455 61-79***
Chevy 400 (Race/Sprchrge) __ __ 1.19
289-351W
302 5.0L, 50 oz bal.
PRA65266
PRA65268
PRA65269
PRA65270
PRA65578
** Fits Chrysler 440 forged crank, 361-383 “B” engine forged cranks(62-70), and 413-426.
Big Block Chevy 454 Small Block Ford 28.4 oz. Small Block Ford 50 oz. Small Block Chrysler 360
__ __ 1.32 __ __ 1.13 __ __ 1.39 __ __ .092
PRA25266
PRA25264
PRA25269
PRA25270
PRA25278
* Fits Chrysler 440 forged crank, 361-383 “B” engine forged cranks(62-70), and 413-426.
Also fits Race and Street 426 Hemi with slight TDC adjustment as detailed in instruction
Ext. 11.14 6.61 Int. 9.83 6.61
273-360
318-360
383-440, 426 Hemi
Chevy 400 (34265 or 34266)
BB Chevy 454 (34263 or 34264) 1.32 SB Ford 28.4 oz. (34269 or 34270) 1.13 SB Ford 50 oz. (34269 or 34270) 1.91 SB Chrysler 360 (34277 or 34278) .092
PRA74265 PRA74267 ChrySLer PRA64277 PRA64278 PRA64279 ford PRA64269 PRA64270 PRA64271 PRA64272 oLdSmoBiLe PRA64276 pontiaC PRA64275 Counterweights
Also fits Race and Street 426 Hemi with slight TDC adjustment as detailed in instruction supplied with damper.
SB 283-350 S/C Use BB 396-427 S/C/Use
pro/Street Balancers
part #
CheVy
PRA21262
PRA24262
PRA24263
PRA24264
PRA24265
PRA24266 ChrySLer PRA24277
PRA24278
PRA24279*
ford
PRA24269
PRA24270
PRA24272 429-460 Counterweights
type Wgt. dia.
Int. 6.10 Int. 8.60 6.75 Int. 13.50 8.00 Ext. 14.50 8.00 Int. 10.60 8.00 Ext. 11.40 8.00
Int 8.50 7.30 Ext. 9.36 7.30 Int. 8.00 7.30
Ext. 9.80 6.40
Ext. 10.60 6.40 Int/Ext 9.25 6.61
Wgt.
Chevy 400 (24266 or 24265) 1.10 BB Chevy 454 (24264 or 24263) 1.32 SB Ford (24270 or 24269)1.13
SB Ford (24270 or 24269)1.91
Small Block Chrysler 360 (24278 or 24277) .092
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