DTHPROOF's BuildThread
#11
Thread Starter
Joined: Oct 2011
Posts: 757
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From: Havelock, New Bern, Newport, NC
TB should be in today so I'll be able to drop the intake on tomorrow night. I'm putting the tbss intake on with the stock tbss rails/injectors and I need Multec II to whatever-the-TBSS-injectors-are adapters. Anyone know of such adapters? Pics to follow, thanks!
Last edited by DTHPROOF; Apr 15, 2013 at 10:30 AM.
#14
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Joined: Feb 2006
Posts: 1,089
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From: NewBern NC/Lake Havasu City AZ
That TB looks real nice Josh. How much can you get me the Trutrac for? I know you said your buddy got a good price. Text me let know. Thanks And just curious if you got your cam pulled yet, or you going to use it again?
#15
Thread Starter
Joined: Oct 2011
Posts: 757
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From: Havelock, New Bern, Newport, NC
Thanks Jason! I called Ron directly and he sold me the unit with the master install kit for $530ish shipped. You may even be able to get a military discount. Hit Ron up directly for the best deal and he's super nice to deal with. I'll tell you what though, these 4.56's are REDICULOUSLY fun.
Last edited by DTHPROOF; Apr 17, 2013 at 09:44 AM.
#18
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Joined: Oct 2011
Posts: 757
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From: Havelock, New Bern, Newport, NC
lol Yep. That's why I have the LQ4 waiting to go in. I'll snap a pic of the head damage later tonight. Hopefully it's not really hurt. It has an indention in the combustion chamber and the valves look ok but I want a machine shop to look at them to make sure I'm not setting myself up for failure. The old 221/226 cam is being sold tomorrow to a good friend who will make use of it. The money I get from that should pay the machine shop whatever he charges.
#19
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Joined: Oct 2011
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From: Havelock, New Bern, Newport, NC
Slight change of plans; the heads are fine and my buddy is buying them today. I have a set of stock 317's that I'm thinking about milling. Anyone else making good power on milled but un-ported 317's?
EDIT- I just got off the phone with the my machine shop and he said the difference of the combustion chambers could be evened out by milling the 317's 0.25". IE- a set of 317's milled 0.25" will yield the same CR as a set of stock 243's. I've read that 317's outflow 243's stock-for-stock. Is that true?
EDIT- I just got off the phone with the my machine shop and he said the difference of the combustion chambers could be evened out by milling the 317's 0.25". IE- a set of 317's milled 0.25" will yield the same CR as a set of stock 243's. I've read that 317's outflow 243's stock-for-stock. Is that true?
Last edited by DTHPROOF; Apr 29, 2013 at 01:52 PM.
#20
243s out flow 317s stock for stock
in the sticky section there is a flow chart of all gm heads
Also your machine shop is wrong! You cant mill a 317 .025 and go from a 71cc down to 64cc like 243 head has
roughly takes .007 milling to remove 1cc
in the sticky section there is a flow chart of all gm heads
Also your machine shop is wrong! You cant mill a 317 .025 and go from a 71cc down to 64cc like 243 head has
roughly takes .007 milling to remove 1cc








