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  1. ShankerIV

    Exhaust Valve Seat Issue

    Hey guys, I recently purchased a "99 cobra" engine for 400 bucks. After tearing it down, i noticed it actually had DB heads (Hell Yeah) and a WAP block. Do the 9 thread DB heads still have the exhaust valve seat issue that plagues the 03/04 cobras? I wasn't planning to get them redone, but if it...
  2. ShankerIV

    Cobra stock timing set max RPM

    Hey guys, I have been slowly buying parts for a turbo 4.6 4v engine for my gt mustang. What kind of rpm can the stock timing set hold reliably? I am looking to push 7500+ rpm consistently. I will be buying a billet crank gear to hold the power so don't count that. Also, can the stock secondary...
  3. ShankerIV

    Stock GT500 Blower with Smaller Pulley

    I bought it to put on an engine, but decided to go turbo instead. The rotors look great, and everything spins nicely. The pulley is aftermarket. Not sure on the brand, but it seems to be either a 2.6" or a 2.65". Does not come with bypass valve, or plenum elbow. I will include new supercharger...

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