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  1. PROSTOCKTOM

    CNC Ported Heads for 318 Poly?

    Does anyone do CNC porting on 318 Poly heads? I have a friend in Ohio looking for someone that does them. Thanks in advance, Tom
  2. PROSTOCKTOM

    King 340 Main Bearings - $$$

    I just got an expensive lesson on main bearings this morning. King no longer offers the standard XP main bearings for a 340. The only option available now is the MB558XPC Coated Main Bearings and these are double the cost of the standard XP bearings. Now for the guys using 360 blocks the...
  3. PROSTOCKTOM

    340 Intake Manifold Casting# 2531915 - Upgrade

    I'll be the first to admit I know very little about OEM SBM intakes. That said I need some input from the small block crowd. I have a older friend that has a 385" (360) stroker in a 67 Valiant Signet, Purple Strip cam, ported heads, AVS carb, and a ported iron 1969 #2531915 intake. He's told...
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