<html><head><style> body {height: 100%; color:#000000; font-size:12pt; font-family:arial, helvetica, sans-serif;}</style></head><body><div>Last time I rebuilt my BJ8 engine, I thought I would like a little better mileage so went from a 275 degree cam (probably one step up from a BJ8 cam) to the stock BJ8 cam, with 9.2:1 compression. I do get better mileage but I can't run the proper ignition advance, only 5-8 degrees on the 91 octane. Imagine what my mileage could be it I could raise the timing to 12 or 15! My point is determine the fuel available and work from there. A wilder cam wants more compression.</div><div>Ken Freese</div><div>65 BJ8</div><div><br></div><div>----- Original Message -----<br>From: drmasucci@comcast.net<br>To: healeys@autox.team.net<br>Sent: Sat, 15 Apr 2017 04:12:46 -0700 (PDT)<br>Subject: [Healeys] Selecting a replacement CAM for BJ8<br></div><div><br></div><div style="font-family: Arial; font-size: 12pt; color: #000000;" data-mce-style="font-family: Arial; font-size: 12pt; color: #000000;"><div>Hi All,<br></div><div><br></div><div>Well now that spring is here, I am resuming the rebuild of my BJ8 engine. The engine was rebuilt back in 1999, but since I'm doing a full resto of the car, I decided to take a look at the engine. While all other parameters were well within spec, the cam and lifters were damaged. Back then I didn't know much about modern oils and the lack of zinc, and since that's the only part of the engine that didn't do well, I am assuming that must be why.<br></div><div><br></div><div>So I am now trying to decide what to do. I can have my cam reground, or buy new. Since I believe it was already reground and based on the wear, I am thinking maybe new is the best choice. I am looking for stock or mild tune only. <br></div><div><br></div><div>I am not a pro engine builder, but I know the basics and am not new to the process. I know that if I change something like the cam parameters, I need to understand how that affects the rest of the valve train. I looking for guidance on selecting the right components.</div><div><br></div><div>I am considering the Welch DWR8 cam and lifter package. I understand that I will have to machine pockets into the block for valve clearance. I will be having the head rebuilt to basic stock parameters as far as the valve gear is concerned. I need to determine how to select the correct pushrods. Since this cam is drilled to feed oil to the lobes, do I need to make other modifications to support that feature? <br></div><div><br></div><div>So I'm looking for some feedback and recommendations from the list. Has anyone followed a similar path on their 6 cylinder Healey? Any opinions, cautions, or advice would be appreciated. Is this cam my best choice? Also if there are better options to consider I'd like to hear that also. <br></div><div><br></div><div>As usual, thanks in advance for any help.<br></div><div><br></div><div>Dave<br></div><div>64 BJ8<br></div><div>72 XJ6<br></div><div>72 Bonneville<br></div><div><br></div><div><br></div><div><br></div><div><br></div></div><div><br></div></body></html>