Valve Lift    .050 Dur.  Adv. Dur.
  Part #       Int.    Exh.   Int.   Exh.   Int.   Exh.  C/L
229-2419   .504   .507   255  266    292   300  105   IMCA Street Stock w/2brl, 3/8-1/2 mile
229-2420   .548   .566   256  265    294   300  105   IMCA Mod., 355c.i., 11.5:1Comp. Ratio, 3000-7000 rpm
229-2421   .533   .555   250  260    286   296  106   IMCA Stock w/2brl, 12:1min. Comp. Ratio, 2800-6500 rpm
229-2422   .536   .525   252  266    285   300  106   IMCA Mod. w/2brl, 12:1min. Comp. Ratio, 3500-7200 rpm
229-2423   .507   .507   249  249    298   294  106   IMCA Hobby Stock, 355c.I., 9:1 Comp. Ratio, 3600-7000 rpm
229-2424   .552   .563   257  260    289   288  102   IMCA Mod. Or light stock car, 12:1max. Comp. Ratio, 4000-7100 rpm
229-2425   .563   .584   259  269    259   269  106   IMCA Mod., 1/4-3/8 mile, high torque, 3200-7200 rpm
229-2426   .537   .557   255  265    290   300  106   IMCA Mod.,377-383-406c.i., 11.5:1 Min. Comp. Ratio, 3200-7200 rpm
229-2427   .544   .533   252  255    283   285  102   IMCA Mod. Or Light Car-11:1 Max. Comp. Ratio, 4000-7100 rpm
229-2428   .531   .542   248  251    279   282  106   IMCA Stock Car-11:1 Max. Comp. Ratio, 2700-7000 rpm, High Torque


Sealed Power Solid Lifters $74.99

Cam & Lifter Set $199.99

Call Alan at (785)506-1410 or email alan@covertspeed.net

Chevy Rotating Assembly
Sportsman Assemblies feature 4340 steel crank,4340 I-beam rods, KB Premium 2618 forged pistons, pins, "H" rod and main bearings and Total Seal 1/16" moly ring set, file it rings.
Kit#            CID      Rod      Piston       Comp 62cc        Sale Price
818-350A    355       5.7        Flat            10.6                $1250.00
818-350C    355       6.0        Flat            10.6                $1275.00
818-383A    383       6.0        Flat            11.4                $1275.00
818-383D    383      5.7         Dish             9.8                $1310.00
818-406A    406       5.7        Flat             12.1                $1275.00
818-406D    406       5.7        Dish             9.7                 $1290.00
818-406F     406       6.0        Flat             12.1                $1290.00

Competition Assemblies feature an ESP 4340 steel crank, 4340 ESP H-beam rods,Wiseco/JE or SRP/Pro Tru forged pistons, pins, "H" rod and main bearings and file fit plasma moly ring set.
Kit#             CID      Rod       Piston        Comp 64cc     Sale Price
818-350B     355       5.7        Flat             10.3              $1725.00
818-350E     355       6.0        Flat             10.3              $1625.00
818-350F     355       5.7        Dome          12.7              $1650.00
818-350G    355       6.0        Dome          11.1              $1680.00
818-350H    355       6.0        Dome          12.9              $1735.00
818-377B    377        5.7        Dome          13.0              $1680.00
818-377C    377        5.7        Flat              10.8             $1630.00
818-377D    377       6.0         Dome          13.0             $1650.00
818-377E    377        6.0        Flat              10.8             $1599.00
818-383B    383        5.7        Flat              11.0             $1660.00
818-383H    383        5.7        Dome          12.9             $1599.00
818-383E     383       6.0         Flat             11.0             $1575.00
818-383F     383       6.0         Dome          12.9             $1730.00
818-383M    383       6.0         Dish             9.8               $1625.00
818-406B    406        5.7         Flat             11.6             $1615.00
818-406E    406        5.7         Dish            9.8               $1650.00
818-406G    406        6.0         Flat             11.6             $1820.00
818-406I     406        6.0         Dome         12.6             $1650.00
818-421      421        6.0          Dome         13.8             $1760.00
818-421A    421        6.0          Flat             12.1            $1740.00
818-434      434        6.0          Dome         15.0             $1760.00
818-434A    434        6.0          Flat             12.3             $1760.00