AFR Heads....STILL getting the job done!
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I do run them a little tighter than most and usually opt for a coated skirt (or hard coat the entire piston). I also fit every piston to every hole which also allows you to tighten up the general tolerance some if you size the bore to every piston.
My 383 was in my car 2.5 years with the solid roller valvetrain, and while it didnt have alot of actual road miles on it (probably 8-10 K), I can tell you I beat that thing like it owed me money and must have bounced off the 7400 chip more times than I could count. Easily had over 250 chassis dyno pulls alone and countless late night blasts on my personal dragstrip a few miles from the house (a two mile long six lane wide desolate stretch of road late in the evening).
When I pulled it apart finally I freshened it and sold it to a customer who now drives it to work everyday with a slightly milder hyd. roller. I literally ball honed the cylinders and installed new rings....the skirts of all the pistons looked great....not excessively worn or scuffed like some of the pics we see on the Internet. Its 18 months later and the engine still runs like a clock (in my customers car) and doesnt make noise or burn a drop of oil. He commutes about 35 miles each way to work so he is racking up the miles alot more than I did.
Regards,
Tony
#89
Sooooooooooooo...Tony......
How long until you get tired of the creation you are building now? I wouldn't want something like that just wandering the streets without a good home I could even help you do a study of Camaro vs. Corvette drivetrain losses.
How long until you get tired of the creation you are building now? I wouldn't want something like that just wandering the streets without a good home I could even help you do a study of Camaro vs. Corvette drivetrain losses.
#90
Im actually pretty pumped up about the 407 Im finishing with the 215's right now....as far as very tractable daily driver type packages go Im hoping to set some new ground with this build.
Then its on to the King Kong cathedral motor with the new AFR 245's....not quite as refined (in manners) as the 407 build, but it should still drive nice enough for a weekend bullet and hit like a freight train when I drop the hammer. Im guessing (hoping) the new engine will make around 580 RWTQ and be over 500 ft/lbs for a large percentage of the power curve.
Should be an "E" ticket ride for sure
#91
TECH Senior Member
iTrader: (3)
Joined: Apr 2006
Posts: 6,524
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From: Western Burbs of Detroit
Well Tony, it sure sounds like when you go the extra mile on a build the motor lasts and lasts. Glad to hear about your old motor getting some miles put on it via 35 mile one commutes for the new owner. He must be truly enjoying his drives to work.
On your "King Kong" build, 580 rwtq with 500+ rwtq thru most of the curve sounds awesome! How much RWHP you think she'll make?
Good luck, and can't wait to see how the Indy customers 407 does on the dyno. You have a highly anticipated build there Tony, enquiring minds want to know.
On your "King Kong" build, 580 rwtq with 500+ rwtq thru most of the curve sounds awesome! How much RWHP you think she'll make?
Good luck, and can't wait to see how the Indy customers 407 does on the dyno. You have a highly anticipated build there Tony, enquiring minds want to know.
#92
My AFR 205s are still making great power on my LS1 after 30k miles... and I just picked up a pair of AFR 225s for my Nova's 408 build. Any chance you will be putting some out for my wife's 5 cylinder Volvo? I love the product and all the forum support you give Tony. The extra help you gave me to quiet down my FAST 78 was very much appreciated.
Clyde
Clyde