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PAC Beehive Springs

BEEHIVE Springs

Why beehive valve springs? Beehive valve springs have been around since the days of the Wright Brothers Airplane; they have been used for over 100 years and are not new to the market. In fact Beehive valve springs are currently used in 90% of the OEM market to achieve the performance and desired valve control demanded by everyday driving conditions. PAC was first to release the new type of wire cross section known as Multi Arc or Ovate wire and has been successfully making millions of MA beehive springs per year.

Beehive valve springs have been known in the industry as having a lower mass at the retainer end thus allowing for better valve control. This is only partially the reason for the better valve control. Beehive valve springs are unique when it comes to coil spacing, rate control, and also using a PAC pioneered MA wire cross section (see below). Beehive valve springs are tailored for specific engines and specific camshafts using PAC RPD and are thoroughly tested using extremely sophisticated load check equipment.

With this technology PAC has been able to excel at providing the best valve train control with beehive valve springs to our customers and the worldwide market.

PART # ID OD ID OD INST. HEIGHT OPEN  LOAD RATE COIL BIND MAX LIFT TITANIUM RET. STEEL RET SEATS CUPS COMMENTS
PAC-1218 1.290 .885 1.055 .640 130@1.800 318@1.200 313 1.140 .600

 PAC-R510  PAC-R511

 PAC-R310 PAC-R311  PAC-S111 N/A   LS1 DROP IN .600 LIFT
PAC-1215  1.290 .885  1.055  .640  105@1.800   293@1.200  313  1.140 .600 

PAC-R510 PAC-R511 

PAC-R310 PAC-R311  PAC-S111  NA  LS1 DROP IN .600 LIFT
PAC-1220  1.445 1.000  1.095  .650  155@1.880   377@1.280  370  1.210 .600   PAC-R510 PAC-R511        Big Block Chevy flat tappet
PAC-1213  1.061 .738  .959  .636  80 @ 1.640   185 @1.090 191  .965  .550         Ford 4.6 2V 
PAC-1214  1.061 .738  .959  .636  100 @1.680  265 @1.080 275   .900 .600           Ford 4.6 2V High load
PAC-1217  1.061 .698  .873 .510   115 @1.600 300 @1.00  308  .965  .625    PAC-R331       Ford 4.6 2V - REQUIRES PAC Retainer
PAC-1223  1.105  .742 .943  .580  90 @1.470   252 @.970 324  .900  .500     PAC-R312      Ford 4.6 4V Drop in
PAC-1233  1.025 .662  .930  .567  105 @1.670  270 @ 1.120 300  1.060  .550          Ford 4.6 3V Drop-in spring for up to .550 lift 
PAC-1235  1.210 .805  1.035  .630  135 @1.800   350@1.200  358 1.160  .600          Chrysler 5.7/6.1 HEMI up to .600 lift 
PAC-1255  1.445 .990   1.186 .731  160@1.950  425@1.300   408  1.220 .700   PAC-R513  PAC-R313  PAC-S112 / PAC-S113  PAC-C201 Hi Lift Flat tappet Applications 
PAC-1283  1.250  .845  1.085  .680  110@1.750 .328@1.150   363  1.080  .600  PAC-R510/PAC-R511  PAC-R310/PACR311      SRT V10 Viper drop in
PAC-1286  1.405 1.00  1.055  .650  125@1.750  295@1.150   283  1.060  .600  PAC-R510/ PAC_R511  PAC-R310/PAC-R311  PAC -S112/PAC-S113    Hydraulic or Flat tappet spring for 1.405 OD Spring applications
PAC-1295  1.589 1.135  1.185  .731  150@2.000  385@1.250   313  1.180  .750  PAC-R513  PAC-R313  PAC-S116    High lift flat tappet up to .750 lift
PAC-1409  1.250 .845  1.055  .650  150@1.800  390@1.250  436   1.190  .550  PAC -R510/PAC-R511  PAC-R310 / PACR311      Stock Eliminator - drag racing only
PAC-1427  1.454 1.000  1.104  .650  200@1.850   500@1.250  500  1.190  .625  PAC-R511  PAC-R311/PAC-R333  PAC-S112/PAC-S113    BBC Stoclk Eliminator - Drag race only
PAC-1514  1.061 .698  .999  .636  115@1.680   280@1.080  275  1.010  .650          Nitrided Version of PAC-1214
PAC-1518  1.290  .885  1.055  .650  130@1.800  318@1.200  313 1.140  .650  PAC-R510/PAc-R511   PAC-R310/PAc-R311  PAC-S111    Nitrided LS1 Spring, .650 lift
PAC-1520  1.445 1.000  1.095  .650  155@1.880  377@1.280  370  1.210  .650  PAC-R510/PAC-R511   PAC-R310/PAC-R311  PAC-S112/PAC-S113  PAC-C201  Nitrided BBC Up to .650 lift
PAC-1523  1.105 .742  .930  .580  85@1.500  263@.950  324  .880  .550          Ford 4.6 4V Nitrided Spring 
PAC-1535  1.210 .805  1.035  .630  140@1.800  355@1.200  358  1.160  .600          Nitrided 5.7/6.1 HEMI Spring 
PAC-1555  1.445 .990  1.186  .731   160@1.950 425@1.300   408  1.220  .750  PAC-R513  PAC-R313  PAC-S112/S113    Nitrided Version of PAC-1255
PAC-1595  1.589  1.135 1.185  .731  150@2.000  385@1.250  313  1.180  .750   PAC-R515  PAC-R313  PAC-S116    .750 lift endurance applications
22 products found. Showing 21 - 22

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PAC-1555 Nitrided Beehive Springs

Part#: PAC-1555

Price: $295.00


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PAC-1595 Nitrided Beehive Valvesprings

Part#: PAC-1595

Price: $295.00

22 products found. Showing 21 - 22