CAM LIFTER LUBE AND CAM KEY KIT by Spotts Performance

the famous Ram Air IV performance cam

BLUEPRINT VERSION OF 041 FACTORY STOCK CAM FOR ALL V8 PONTIACS

Only recommended  for 400 plus cubic inch Pontiacs with good screw in studs heads 

REPLACES 041 CAM FOR PONTIACS - MAKES higher RPM power on 400 and great for 455 and stroker engines

OK FOR POWER BRAKES AND A/C for larger stroke engines (421/428/455 and strokers)

US MADE CAM AND HIGH QUALITY EATON LIFTERS - beware of Chinese lifters out in the marketplace 

I USE THE PARTS I SELL

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Hydraulic Flat Tappet Camshaft  

Cam Style: Hydraulic Flat Tappet

Valve springs: VSH3 for Dports install around 115 lbs closed stay below 300 lbs open

Basic RPM Range: 1800-5800 depending on cubic inch

HCS041 RAIV

 

Part Number

Direc

Cam Iift

Lift 1.5

Adv dur

@050 dur

Open

Close

Overlap

Lash

Centr line

Lobe sep

HCS041

INT

.313

.470

304°

231°

3° BTC

48° ABC

85°

HYD

112°

113.5

EXH

.313

.470

316°

240°

54° BBC

6° ATC

115°

 

Degree cam at 112 intake center line or 2 degrees advanced