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#1
03-29-2016, 06:18 PM
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ported head question..
is it normal to go into the head bolt hole on a set of heads when porting them? if so would there be an issue with running them? i got a set of heads that have been ported by butler, and after taking them apart was told that they intruded into the head bolt hole on some of the exhaust ports. the guy at the machine shop said it shouldnt be a big issue. is this a big issue or just normal? any input would be appreciated..thanks
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1970 firebird, 468, e heads, |
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#2
03-29-2016, 06:32 PM
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Jamie,shouldn't be a problem. My old RA4 heads were that way and. I ran them for years with no problems.
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#3
03-29-2016, 06:33 PM
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thanks....mr Perry
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1970 firebird, 468, e heads, |
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#4
03-30-2016, 06:51 AM
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What heads are we taking about here?
If iron what casting number? in general if I was doing the motor and new that some head bolts where doing that I would apply 5 more ft lbs of torque to those bolts due to them heating up more in use and giving up some clamping force!
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Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs! And he was not talking about 1/8 or 1/4 mile ETs! 1) 1940s 100% silver 4 cup tea server set. Two dry rotted 14 x 10 Micky Thompson slicks. 1) un-mailed in gift coupon from a 1972 box of corn flakes. Two pairs of brown leather flip flops, never seen more then 2 mph. Education is what your left with once you forget things! |
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#5
03-31-2016, 11:05 AM
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It's normal. No worries.
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John Marcella Marcella Manifolds Inc. john@marcellamanifolds.net ph. 248-259-6696 |
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#6
04-01-2016, 12:47 PM
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Like was said above...no worries. My Butler ported E-heads were the same way.
Bryan |
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#7
04-03-2016, 09:34 AM
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thanks guys
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1970 firebird, 468, e heads, |
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