5m-ge head rebuild

CanadianBak'inSupra · 04-23-2010, 02:49 AM

i am wanting to rebuild the head (to a minamal HG, and cams camshaft seals w/e else i may be missing) from my spare block and possibly put a good MHG in. and probly heat paint the outside of my head,

want to know if there would be any difference on anything in the tsrm online manual, between my 84 block and the 86 the manual is intended for.

also what is the best brand of MHG or a really good one for the 2.8L

does anyone have any experience with cams, i want to know a good brand to grab, price isnt a problem.

thanks in advance for any info

midwestmk2 · 04-23-2010, 05:02 PM

As far as headgaskets i would go with the HKS 1.2m. You will also need to have the head milled to garantee that it is square and will seal properly..By doing so you will also raise compression slightly and in turn a few extra HP.. I would also torque the head bolts down about 20ftlbs more than the tsrm recomends if you go studs then go up to 40ftlbs more.. Now the cams i have heard good things about the GUDE cams although HKS "did"
make cams for the 5mge but you will have to find a set of used ones or have some custom ground to there spec which you would need them for someone to copy anyway.. Good luck on the build i gave up on my 5mge days.. Ive been through 5 of them in 4 years.. Im going to do a SBC swap now..

cre · 04-24-2010, 06:26 PM

Does the 5M use the same HG as the 7M? If the 5M uses the same HG as the 7M you'll see a significant bump in CR from billing and then installing a HG that's thinner than stock... could be a good thing could be a bad thing... depends on the health of the engine and your future plans for it. Just keep it in mind.

midwestmk2 · 04-29-2010, 10:05 AM

yep headgaskets are interchangable from 5,6,7m motors..

CanadianBak'inSupra · 08-06-2010, 04:42 AM

well its official. my 5m head is cracked, and 2 exhaust manifold bolts tore out threads and all.

just need money and i can get my replament head machined port and polished, aswell as all new valve-train. think ill top it off with a 7mgte head gasket just incase i decide to go turbo.

if anyone else has good ideas chime in...

04-23-2010, 02:49 AM	#1
CanadianBak'inSupra Official hall monitor / search nazi - NO SOUP FOR YOU! Join Date: Oct 2009 Location: Canada, BC Posts: 837	5m-ge head rebuild i am wanting to rebuild the head (to a minamal HG, and cams camshaft seals w/e else i may be missing) from my spare block and possibly put a good MHG in. and probly heat paint the outside of my head, want to know if there would be any difference on anything in the tsrm online manual, between my 84 block and the 86 the manual is intended for. also what is the best brand of MHG or a really good one for the 2.8L does anyone have any experience with cams, i want to know a good brand to grab, price isnt a problem. thanks in advance for any info __________________ 1984 supra - 1uzfe - w58 - 4.10 - 1 piece aluminum shaft.

04-23-2010, 05:02 PM	#2
midwestmk2 3" Exhaust Join Date: May 2005 Location: STL ,MO. Posts: 206	As far as headgaskets i would go with the HKS 1.2m. You will also need to have the head milled to garantee that it is square and will seal properly..By doing so you will also raise compression slightly and in turn a few extra HP.. I would also torque the head bolts down about 20ftlbs more than the tsrm recomends if you go studs then go up to 40ftlbs more.. Now the cams i have heard good things about the GUDE cams although HKS "did" make cams for the 5mge but you will have to find a set of used ones or have some custom ground to there spec which you would need them for someone to copy anyway.. Good luck on the build i gave up on my 5mge days.. Ive been through 5 of them in 4 years.. Im going to do a SBC swap now.. __________________ 83 p-type,5spd,4;10 gears,New 86 cressida 5MGE 195hp,HKS metal head gasket,Cressida injectors,d-port intake runners,No EGR,No cat,Tweaked MAF,Custom cold air intake,Custom rear strut bar,Perfection clutch,Custom 3inch exhaust,4inch bazooka muffler,,Only 2700lbs,, COME AND GET IT!IF YOU DARE!! Please no Honduuuuhhhs!!! http://www.cardomain.com/ride/858848/2

04-24-2010, 06:26 PM	#3
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	Does the 5M use the same HG as the 7M? If the 5M uses the same HG as the 7M you'll see a significant bump in CR from billing and then installing a HG that's thinner than stock... could be a good thing could be a bad thing... depends on the health of the engine and your future plans for it. Just keep it in mind. __________________ If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. Tip Jar --->

04-29-2010, 10:05 AM	#4
midwestmk2 3" Exhaust Join Date: May 2005 Location: STL ,MO. Posts: 206	yep headgaskets are interchangable from 5,6,7m motors.. __________________ 83 p-type,5spd,4;10 gears,New 86 cressida 5MGE 195hp,HKS metal head gasket,Cressida injectors,d-port intake runners,No EGR,No cat,Tweaked MAF,Custom cold air intake,Custom rear strut bar,Perfection clutch,Custom 3inch exhaust,4inch bazooka muffler,,Only 2700lbs,, COME AND GET IT!IF YOU DARE!! Please no Honduuuuhhhs!!! http://www.cardomain.com/ride/858848/2

08-06-2010, 04:42 AM	#5
CanadianBak'inSupra Official hall monitor / search nazi - NO SOUP FOR YOU! Join Date: Oct 2009 Location: Canada, BC Posts: 837	well its official. my 5m head is cracked, and 2 exhaust manifold bolts tore out threads and all. just need money and i can get my replament head machined port and polished, aswell as all new valve-train. think ill top it off with a 7mgte head gasket just incase i decide to go turbo. if anyone else has good ideas chime in... __________________ 1984 supra - 1uzfe - w58 - 4.10 - 1 piece aluminum shaft.

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