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Author Topic: Retrofitting Roller Cam  (Read 4903 times)
acdcdave1387
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« on: June 25, 2010, 09:27:56 pm »

Hey there everyone,
I'm both new to SBFtech as well as to engine building. I picked up a 1966 289 in great condition, everything was stock except the intake. I'm going to get it machined and honed .030 over probably next week or so. Anyhow I have been researching the benefits of retrofitting the newer style roller cams into these old blocks and it looks like thats the way I'd like to go. Here is my dilemma...
I was looking into the Edelbrock Performer RPM roller cam (part # 2221) but it turns out I have the buy the lifters separate. Edelbrock wants me to buy their retrofit roller lifters with the link bars, but they are roughly $560!
So I was looking at other options and came across this Comp Cam retro fit kit designed to work with these lifters (kit part # 249-31-1000, lifters part # 249-851-16) Obviously the alternative appears to be significantly cheaper than the Edelbrock lifters...

So what do you guys think I should do? Has anyone used this kit, or even heard of anyone else using it?

Also, will the Edelbrock Performer RPM Roller cam work with this Comp Cam kit? I saw some nice looking Comp Cams as well such as the Magnum 284 but they are slightly more expensive than the Edelbrock cam.
Sorry for the newbie-ness but a man has to learn some way right?
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Joel5.0
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« Reply #1 on: June 25, 2010, 11:34:51 pm »

The problem with the spider-dog bones  retrofit kit is that you will be limited to what is known as a reduced base circle cam, which you should avoid using. There are HR link-lifter options at ~$380 that will allow you use a regular HR base circle camshaft.
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289nate
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« Reply #2 on: June 25, 2010, 11:40:14 pm »

With that kit you will have to use a reduced base circle cam.  The stronger standard base circle cam will leave the roller lifters too high out of their bores in a early non-roller block.
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\'65 fastback pump gas 289, 4.56 gears, and faceplated T5.  11.123 at 122.4
289nate
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« Reply #3 on: June 25, 2010, 11:42:47 pm »

Joel beat me to it. Smiley  If you do go with the link bar lifters in an early block with the shorter lifter bores, be sure to make sure the oil band in the lifter doesn't come out of the bore at max lift before you button it up.  Just something to check.
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\'65 fastback pump gas 289, 4.56 gears, and faceplated T5.  11.123 at 122.4
acdcdave1387
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« Reply #4 on: June 26, 2010, 01:20:35 am »

Thanks guys, I need all the help I can get.
So are there any retrofit style roller lifters you can recommend? I still would rather not have to get those rediculously expensive Edelbrock lifters...I've found some Compcam lifters but they're only $30 cheaper (at $530) which is still kinda high.
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289nate
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« Reply #5 on: June 26, 2010, 01:53:11 am »

I'm a solid lifter kind of guy personally so I'm not of the most help.  If you are willing to step into the world of link bar hydraulic roller lifters in an early block (good idea in my opinion) then I can move this out of the 289 section where you'll likely get more traffic from the guys who know their hydraulic roller lifters.  There rightfully isn't much interest in the 289 anymore.  Let me know as I'm here to help. Smiley
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\'65 fastback pump gas 289, 4.56 gears, and faceplated T5.  11.123 at 122.4
acdcdave1387
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« Reply #6 on: June 26, 2010, 04:29:04 am »

Thanks for the help guys. You don't have to move it to a different thread though...I'm still conflicted, but now I'm kind've considering just an ordinary flat tappet cam because of the huge price differential. So conflicted!
Oh well, I've still got plenty of time to decide...Any major disadvantages to the flat tappets aside from increased wear and tear?
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