Crower Sbc Stainless Shaft Rockers 74139f 1.6rato Afr Heads 180 190 195 210 220 on 2040-parts.com
Torrance, California, US
Free shipping US only lower 48 states only Crower SBC Stainless Steel Shaft Rockers 74139F 1.6 ratio AFR 180 190 195 210 220
These are used rockers that came off of my street/strip car. I'm selling them because they will not work with the new heads I'm using. They have only around 20 passes on it. There is absolutely nothing wrong with these, there are no marks on them at all. I've had no problems with them. Click on the bar code picture to see that these have the additional roller bearing tips, which is a $150 option. Without this option you only get a bushing. These rockers roughly add .042 lift over the standard ratio of 1.5, without changing your original cam. More lift is always a good thing! I also have AFR Eliminator Competition heads that came off the motor up on another auction. If you have any questions, call Gary at 310-549-3000
Google "valve lift from rocker ratio calculator" to figure out your exact ratio.
If Crower stainless steel shaft mount rocker arms sound like overkill, consider the tremendous abuse the valvetrain sees at 7,000 rpm. Shaft rockers won’t flex like stud mount rockers do—and Crower’s stainless shaft rockers are as close to bulletproof as you can get. That means more stable valve timing and longer valvetrain life. The 1.6 ratio rockers are a bolt-on for the AFR Eliminator heads—no machine work is required. The last two pictures are there to show why you should consider stainless steel rockers over aluminum. The aluminum rockers pictured are made by well known American companies, T&D, Jessels, Scorpion, no imports. Another thing is that aluminum rockers typically use a smaller bearing, in order to maximize the amount of aluminum to hold it all together.
I also have AFR Eliminator Competition heads that came off the motor up on another auction.
Check out this video, you can see my car is street strip, and not full blown race car.
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