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| Northstar rebuild: Will style (Page 45/119) |
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Erik
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MAY 05, 11:22 PM
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they sure are pretty
I have a 94 block so it should have the same bolt holes for the lower case/manifold you mentioned, correct? If so, will 98 heads fit the block?[This message has been edited by Erik (edited 05-05-2009).]
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Will
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MAY 05, 11:25 PM
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Yep... too bad I have to close them up inside an engine.
Not sure if the '94 case half would have the same holes or not. I know '95 doesn't. Pull the pan and check it out. 
'98 heads will fit. Any FWD head will bolt onto any '99 and older block. The '99 and older heads should not be used with Y2K and newer pistons because those pistons do not have valve reliefs.[This message has been edited by Will (edited 05-05-2009).]
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Erik
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MAY 05, 11:33 PM
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well, I don't want to take it apart just yet, I want to run it for a season and then this winter I will check it out. Is that a stock crank other than being blueprinted?
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Will
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MAY 05, 11:49 PM
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It's a stock crank that's had the journals cut .010 and had balance material removed via turning rather than drilling.
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Erik
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MAY 06, 01:03 AM
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| quote | Originally posted by Will:
It's a stock crank that's had the journals cut .010 and had balance material removed via turning rather than drilling. |
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glad to hear you can get oversize bearings ..I take it the piston is oversize as well
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Will
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MAY 06, 07:52 AM
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Chuckle... I had this discussion with Alltrbo when we were building his 350... bearings are UNDERsized
The pistons are .008 over. Since they were custom cut, I could get them whatever size I wanted. The bores cleaned up from the previous botched hone job at 3.670.[This message has been edited by Will (edited 05-06-2009).]
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Will
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MAY 06, 11:51 AM
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Awwww junk! It's serious now.
I just ordered a set of Cometic MLS gaskets with 3.680 bore and 0.036 thickness. They should take about three days to produce and then be shipped overnight... probably have them Tuesday of next week.
I started a topic here: http://chrfab.topic-board.c...37-cams-t121.htm#418 about whether or not I will need head studs for this engine.[This message has been edited by Will (edited 05-06-2009).]
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Erik
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MAY 06, 02:06 PM
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| quote | Originally posted by Will:
Chuckle... I had this discussion with Alltrbo when we were building his 350... bearings are UNDERsized
The pistons are .008 over. Since they were custom cut, I could get them whatever size I wanted. The bores cleaned up from the previous botched hone job at 3.670.
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I knew you would say the bearings were undersized
I recall you having problems getting the cylinders honed properly. Did they actually bore out the cylinders? If so did they use the standard cutting tool?
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Erik
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MAY 06, 02:08 PM
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Why not go for head studs anyway? Cost?
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Will
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MAY 06, 02:59 PM
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If I don't have to spend the $200 right now, why should I?
I was having issues with the Northstar hone because it's not a Chevy. The Northstars have very hard very high quality iron in the bore liners. This means that a silicon carbide stone that's normally used to hone softer Chevy blocks won't hone a Northstar bore... it'll just polish it. Northstars need to be honed with aluminum oxide stones. The initial bad hone job was done that way. The second hone job looked good, but I never ran it. I got the third and current/final(?) hone job done so that the bore would better match the rings that Total Seal had available in my bore size.[This message has been edited by Will (edited 05-06-2009).]
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