451/452 Stroker Builds?

sasquatch said

StrokerScamp mentioned the KB pistons that give you 451 with 400 rods, has anyone used this before? I was looking a the piston on their site and it said that the quench dome must be maintained with those pistons. This may not be the thread for this but what has to be done to achieve this for these pistons to work in this stroker combo?

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It depends on which piston you use, as well as which head. There are two piston part numbers with a quench dome. The KB215, which has a .095" quench dome. This piston will work in open chamber heads with no machine work. Then, there's the KB251, which has a Quench dome of .260". This piston requires the dome to be machined regardless of which head is used. KB recommends the quench area be measured with clay whichever piston or head combo you use, just to be sure there's enough room. Milling piston tops is a fairly easy and inexpensive process. Some people scoff at the 400 rods, but with them, the rod to stroke ratio rounds off to 1.7. LMAO If you want to build an engine based on the best rod to stroke ratio, the best one hands down is the stock stroke 400. It's ratio rounds to 1.9.