Chapter GMW | E30 LS1 (starting on post #1427)
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Lookin' good m8
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Still burning coolant. Guessing that the deviation in the block didn't come out with the block prep... I'll get in there this weekend to see what the spark plugs look like.
Getting to drive it was still fun. It rips pretty good while laying a smoke screen.
WTB:S52 motor
Thinking that I'll get new rings on my Imagineering pistons. Swap those and the K1 rods over to the new crank. Drill and tap the head studs out to a bigger size (I think Boris with the 8 second e30 is running RB26 ARP studs). Punch out the bore to 87mm then machine down the block surface. Slap the head on with a cut ring gasket and try to blow it up!
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Or should I buy a new head, machine my block down to level and go from there?
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I've got a buddy who swears by this stuff.
800+whp LS motors, 700+ whp 4G63s, etc. He really globs it on there - may be worth a try,

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It is eating coolant and the oil is milky tan...
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It is eating coolant and the oil is milky tan...
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Well in that case... I just remember the disappointment at the clouds of smoke on startup of the first engine I built and somebody told me later "oh yea they always do that".
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Getting motivated
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The m52 that I picked up for $380 is shot. Cracked head and the cylinders need to be bored out due to rust from a head gasket leak. I could use the block and bore it out to 87mm for my pistons.
Anyone have a m52 or s52 from an automatic car? Preferably owned by a grandma who had a 50 mile daily freeway commute in a 55mph speed zone.
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I on some fronts, yes. It was a junk yard motor he didn't have any knowledge of.
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Not much going on lately. Trying to figure out if I should mill down my S52 block to make it perfectly straight, o-ring it and run a thicker MLS gasket. Do the putty thing in the combustion chamber to make sure I'm okay.
Or..
Build up one of these m52s that I have been slowly collecting.
Positives for decking the S52:
- Use the parts that I have
- cheapest route
- more torque
- I can learn megasquirt on a used motor
Negatives:
- there was some detonation so my rods and pistons might be shot (I really don't think they are)
- thicker head gasket makes for a weaker seal.
Build M52 positives:
- take what I've learned from the s52 build and make this one super solid
- Better head gasket seal
- can run more boost in future
Negatives :
- $$$$$$$ (house projects and getting the M3 back on the road are priority.)
- Would also like to buy a Blunttech T4 tubular manifold and a big turbo for a lot of boost. $$ (I would sell my turbo, t3 manifold, down pipe and exhaust to compensate)
- 4 in downpipe and exhaust to be made $$$
- Did I mention $$$
Please let me know your thoughts on this. Any input would be greatly appreciated.
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Swap in an L*.........
Just kidding
I vote option one with the s52 since it is the cheapest route and you can enjoy the car while doing option 2 if you so please=)
I'm leaning this way. Thank you for the input!!
If I do a LS it would be in a Datsun 240/280z. I have my eye on a mint 280z at a buddies just getting dusty in his barn.
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