I have a BBC427 talldeck 10.2 block I want to build..I have a set of Jahn std pistons but it wont stay std so Im needing a set of .030 pistons..My question is The Talldeck has a longer piston But Im reading you can use a reg 9.8 piston W/a 400 long??Im also understanding the 10.2 has an extra ring? I have a new set of .400"H"beam rods & a set Of .060 pistons for a 9.8 block will they work?
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