I can't seem to find any info on this, just wondering if there's a break in period for Ford Racing lifters? How long do i have to wait before i can drop the hammer? 
Break in period for new lifters?
- Thread starter 85_SS_302_Coupe
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ryan218
In just 10 years, I'll be old enough to drive!!!!
vikingpower
New Member
ryan218
In just 10 years, I'll be old enough to drive!!!!
vikingpower
New Member
Flat tappets have to be 'broken in' by establishing a smooth wear pattern, analogous to seating new rings to freshly honed cylinders
vikingpower
New Member
Uh oh
Do you know what that means?
That means it's time to punish the tires
But if you swapped heads, they do require a short break in period for the valve guides. Its also a good idea if you install new non-roller rockers that use a sled-fulcrum (i.e. factory style)
Eh, this wasn't your average by the book head swap....it was straight out of the redneck how-to book....reused head bolts and all. As long as it lasts until i finish my other engine, i could care less. It's running like a bat out of hell right now so i can't complain.
Now i just have to retorque the stupid header bolts
F'in MAC headers FTMFL 
fastford91
New Member
roller rockers require no break in period! drop the hammer now!!!!!!!!!! lolI can't seem to find any info on this, just wondering if there's a break in period for Ford Racing lifters? How long do i have to wait before i can drop the hammer?
jammer84_03
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- Nov 30, 2003
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vikingpower
New Member
Eh, this wasn't your average by the book head swap....it was straight out of the redneck how-to book....reused head bolts and all. As long as it lasts until i finish my other engine, i could care less. It's running like a bat out of hell right now so i can't complain.
Now i just have to retorque the stupid header bolts
SS ARP header studs will take care of that. Not cheap though
Yeah my new engine is getting ARP everything, but for now as long as it holds together
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