Replacing the Head Gasket

suprra_girl · 10-17-2005, 12:07 PM

if you are doing a mhg you need to have the block prepped for it also
you have pretty much the right plan
arp head studs = 82ft lbs
arp head bolts = 72ft lbs
new stock bolts = 72ft lbs

head machined to a fine polish/RA

what are you planning to do with the car

if you're not planning more than 15psi & 300whp then a stock head gasket and arps will be fine and you will get away with having to have a perfect block finish

SupraDietrich · 10-19-2005, 01:16 AM

I plan on running around 300 HP for a while (well up to 300 anyways) untill after university cause i know i won't have alot of money, but yeah even posting this the same questions still remain, can i do this myself with a few friends ?, cause anything over 1000 bucks just sounds rediculous, i mean i know i will get a torque wrench first thing and get those torque specs set properly to avoid this but even if i just want a batter HG on there like the steal HKS one and some ARP studs with that to make sure this is super reliable then i don't want to pay 2K to get it put on, and remember i'm in canada lol... OH! and does winter driving effect the HG at all ?, like the cold weather and started it in winter... stuff like that, i really want to know this inside and out so i know what to aim for first offf when i buy the car, cause right after all this HG stuff i'm gunna throw 3" downpipe and straight pipe with a nice loud muffler on there MWAHAHAHAHA!!!!, yeah i like my friends 87 turbo, sounds nice, with the straight pipe 3" the whole way, anyways, if anyone can keep posting info on the HG stuff and pictures videos links to step by step repair (do-it-yourself) sites, pretty much anything cause i kinow alot will benefit from this if i can get a few experienced enthusiasts to give us their best info about it, thanx again, Dieter

Bullz_EyE · 10-19-2005, 06:11 AM

Quote:

Originally Posted by suprra_girl

head machined to a fine polish/RA

Whats the "RA" stand for?

EDIT: You also mentioned you need the block prepped. What on the block needs to prepped for a MHG?

Bullz_EyE · 10-24-2005, 12:18 AM

Bump for a response.

mrnickleye · 10-24-2005, 06:23 AM

Quote:

Originally Posted by Bullz_EyE

Whats the "RA" stand for?

EDIT: You also mentioned you need the block prepped. What on the block needs to prepped for a MHG?

It means way more work and $$$.....stick to head work and stock gaskets.
The block would need to come out and stripped down and sent to machine shop for a resurface to a near mirror finish. Only needs to be done when you are trying to increase HPs over 300-350. Wait till you've owned it a long while, and feel like making it your hobby (throw $$$$ at) car.

skunk · 10-25-2005, 09:34 AM

I know its good to deck the block ,but depending on how bad the head gasket blow was and how hot the engine got it might not be warped if your head is only warped like 6 thousandths the block might be ok I didnt deck my block, I used a copper head gasket and arps, it seated nice

sik5hit · 10-29-2005, 05:47 PM

i am only 16 but i am replacin the head my self wasnt that hard to take it out but i am doin it at my high shool and my teacher has years of experience behind him so i have him to help i have to replace my whole head because it was warped to the point that if i used it.. it would bend my camshafts. but i got everyting cleaned up and ready to go back in but damn there are alot of sensors

nickvash0104 · 10-29-2005, 07:10 PM

RA = unit of measurement of how smooth something is, if I recall correctly

Levi1717 · 11-09-2005, 01:57 AM

i agree with the buick thing. i bought a supra to drive the god damn hell outa it. and yes i did blow the head gasket. but luckly i have a friend that owns a machine shop and gets the gasket set for less then half the price. haha

10-17-2005, 12:07 PM	#1
suprra_girl 7M POWAH! ;) Join Date: Jun 2004 Location: New Zealand Posts: 2,312	if you are doing a mhg you need to have the block prepped for it also you have pretty much the right plan arp head studs = 82ft lbs arp head bolts = 72ft lbs new stock bolts = 72ft lbs head machined to a fine polish/RA what are you planning to do with the car if you're not planning more than 15psi & 300whp then a stock head gasket and arps will be fine and you will get away with having to have a perfect block finish __________________ Please use the forum to ask your questions as they will get replied to much faster than pming me Pics of my build. "Good girls are just bad girls that don't get caught" Do a diagnostic first!

10-19-2005, 01:16 AM	#2
SupraDietrich Stock Join Date: Aug 2005 Posts: 23	I plan on running around 300 HP for a while (well up to 300 anyways) untill after university cause i know i won't have alot of money, but yeah even posting this the same questions still remain, can i do this myself with a few friends ?, cause anything over 1000 bucks just sounds rediculous, i mean i know i will get a torque wrench first thing and get those torque specs set properly to avoid this but even if i just want a batter HG on there like the steal HKS one and some ARP studs with that to make sure this is super reliable then i don't want to pay 2K to get it put on, and remember i'm in canada lol... OH! and does winter driving effect the HG at all ?, like the cold weather and started it in winter... stuff like that, i really want to know this inside and out so i know what to aim for first offf when i buy the car, cause right after all this HG stuff i'm gunna throw 3" downpipe and straight pipe with a nice loud muffler on there MWAHAHAHAHA!!!!, yeah i like my friends 87 turbo, sounds nice, with the straight pipe 3" the whole way, anyways, if anyone can keep posting info on the HG stuff and pictures videos links to step by step repair (do-it-yourself) sites, pretty much anything cause i kinow alot will benefit from this if i can get a few experienced enthusiasts to give us their best info about it, thanx again, Dieter __________________ I want a supra SO SO Badly...

10-29-2005, 05:47 PM	#7
sik5hit Stock Join Date: Oct 2005 Posts: 9	replacin gaskets i am only 16 but i am replacin the head my self wasnt that hard to take it out but i am doin it at my high shool and my teacher has years of experience behind him so i have him to help i have to replace my whole head because it was warped to the point that if i used it.. it would bend my camshafts. but i got everyting cleaned up and ready to go back in but damn there are alot of sensors

10-29-2005, 07:10 PM	#8
nickvash0104 3" Exhaust Join Date: Aug 2005 Location: Dallas, TX Posts: 78	RA = unit of measurement of how smooth something is, if I recall correctly __________________ Black '87 N/A Auto

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10-24-2005, 12:18 AM	#4
Bullz_EyE 3" Exhaust Join Date: Oct 2005 Location: San Diego, CA Posts: 238	Bump for a response.

10-25-2005, 09:34 AM	#6
skunk 3" Exhaust Join Date: Jun 2005 Location: southern oregon Posts: 133	I know its good to deck the block ,but depending on how bad the head gasket blow was and how hot the engine got it might not be warped if your head is only warped like 6 thousandths the block might be ok I didnt deck my block, I used a copper head gasket and arps, it seated nice

11-09-2005, 01:57 AM	#9
Levi1717 3" Exhaust Join Date: Sep 2005 Location: Corinth, Maine Posts: 116	i agree with the buick thing. i bought a supra to drive the god damn hell outa it. and yes i did blow the head gasket. but luckly i have a friend that owns a machine shop and gets the gasket set for less then half the price. haha