Largest O.D. Valvespring without machining??
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Largest O.D. Valvespring without machining??
What is the max outer valvespring diameter that fits aluminum LT1 heads without machining? I'm not saying I want to RUN the largest valvespring I can..... I just want to know what will fit.
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In regards to 1.26":
I thought that was for the iron heads....and for LS1's. Don't the Crane 10308's fit without cutting the spring seats? They are 1.46" from what I've read.
I thought that was for the iron heads....and for LS1's. Don't the Crane 10308's fit without cutting the spring seats? They are 1.46" from what I've read.
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The stock spring locator measures 1.300 OD. I just looked at a spare head I have and with the contours of the head casting and the machining of the spring seat area there isn't alot of room to go a much bigger spring locator. I just bought some PAC LT4 type drop in springs (1212X) that measure 1.355 OD. I haven't got them yet but they should fit fine.
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Probably not a big deal for the type of builds that will be using them, but worth mentioning.
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So......is 1.46" the biggest that fits orr is it just largest OD ya'll have used and know is a bolt-in?
BTW, I've been running the #10308 kit for about a year now and I'm pleased with it. I'm just shopping around for some other builds. I also know the old standby answer: Run the springs your cam grinder recommends.
BTW, I've been running the #10308 kit for about a year now and I'm pleased with it. I'm just shopping around for some other builds. I also know the old standby answer: Run the springs your cam grinder recommends.