Machine work on a 327 - Team Camaro Tech
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post #1 of 9 (permalink) Old Mar 12th, 03, 08:39 AM Thread Starter
 
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Hey guys, if I want to make 400 hp on my never rebuilt 327, what machine work will I need?

I will be running the performer RPM package, with the XE268 cam, and probably the RPM heads, cause I can get a good deal on them. Thanks in advance...
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post #2 of 9 (permalink) Old Mar 12th, 03, 03:31 PM Thread Starter
 
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Ok, I figured this at the very least, and got price quotes for them:

Bore/hone: 135
Hot tank block: 60
deck block: 110
resize rods: 96

I dont really know if I should have anything done to the crankshaft. I can have an align bore done for 95, and have the crank polished for 45. I figure I can get by without an align hone.

One thing I am worried about is the rod/main bearings, and the freeze plugs. Should have these done? Please I need help...
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post #3 of 9 (permalink) Old Mar 12th, 03, 05:35 PM
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If you have block hot tanked you have to put new freeze plugs in also cam bearings. I would have the crank checked & polished new main & rod bearings. Why are you decking the block? I would just replace the rod bolts with ARPs nothing else.You shouldnt need align hone either.

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post #4 of 9 (permalink) Old Mar 12th, 03, 09:50 PM
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Agreed. Spend the $60 and buy a set of ARP Pro series waveloc rod bolts. If you are building a small journal 327 this is a MUST! Those bolts are very small. Even if it's a large journal motor it is time to replace the bolts by now. The factory bolts are knurled and that creates stress risers. You need to resize the rods after replacing the bolts, so do it first and then get the rods resized. Also plan on having the crank snout drilled and tapped for a balancer bolt if it isn't already done.

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post #5 of 9 (permalink) Old Mar 12th, 03, 10:48 PM Thread Starter
 
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Ok, so should I get the block hot tanked and new freeze plus/ cam bearings installed?

So far the is the list:

Bore/hone
rods resized
polish crank
new rod/main bearings

Can someone explain to me what drilling the crank snout for a balancer bolt is and what it does??? Thanks guys...
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post #6 of 9 (permalink) Old Mar 13th, 03, 05:10 AM
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The crank doesn't have a bolt hole to put the balancer on with...it's a press fit. If you have the threads machined into the crank, you can just use a bolt to put the balancer on, rather than the BFH method I've used.

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post #7 of 9 (permalink) Old Mar 13th, 03, 05:11 AM
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some cranks on the old 327s have a pressed on balancer. To drill and tap the crank snout is to add a threaded hole so that you can hold your balancer on via a balancer bolt that is less likely to let go.


Another thing... have your rotating assembly balanced when you get your new pistons.

John

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post #8 of 9 (permalink) Old Mar 13th, 03, 05:35 AM
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Yes have it hot tanked and put in plugs and cam bearings.Think of it this way if you dont replace freeze pluge & one on the back of the engine starts to leak you have to pull engine or trans to replace it. Freeze plug kit is less than $10.00 cam bearings are around $20 depending on where you buy them. Old worn bearings will give you low oil pressure.

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post #9 of 9 (permalink) Old Mar 13th, 03, 08:46 PM
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Some good advice here from everyone.

Definitely have the crank drilled and tapped for the balancer bolt. If you've ever had a balancer come off, I have, it's not a good day!

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