Copper Head Gaskets
Discussion
I thought it would be best to as on this part of the forum as there are lightly to be people who have had the same trouble.
Ive bought some copper head gaskets for my 5ltr rover v8 (with top hat linners), I torqed them down more than needed and i think i moved a cylinder out into the water way on the gasket when i forgot to retard my timing while using 180hp of gas
Ive since been told to just seal round the water ways then ive also been told to get that copper gasket sealing spray and a few people have said copper gaskets wont work without O rings in either the head or the block.. Im confused as to what i should do as i run quite high compression and just want them to seal. Does anyone rate the copper gasket sealing spray ?? Any answers or advice would be greatly appreciated, Thanks
Ive bought some copper head gaskets for my 5ltr rover v8 (with top hat linners), I torqed them down more than needed and i think i moved a cylinder out into the water way on the gasket when i forgot to retard my timing while using 180hp of gas
Ive since been told to just seal round the water ways then ive also been told to get that copper gasket sealing spray and a few people have said copper gaskets wont work without O rings in either the head or the block.. Im confused as to what i should do as i run quite high compression and just want them to seal. Does anyone rate the copper gasket sealing spray ?? Any answers or advice would be greatly appreciated, ThanksA composite gasket uses the fibres to infill any block/head imperfections. To use a steel or copper gasket you must have very smooth mating surfaces. Personally I wouldn't use a copper gasket on a cylinder head unless it's very soft and thin and the mating surfaces are mega smooth. Surely good composites or mls are good enough?
If using an MLS gasket ask your machinist to machine to 50ra, although 35ra would probably be a much better target to absolutely ensure sealing. With MLS you really don't need sprays and stuff.
With copper you can anneal to re-use. I'd personally think that a fire ring should be made if using copper gaskets. I guess your block isn't O ringed for piano wire yet?
With copper you can anneal to re-use. I'd personally think that a fire ring should be made if using copper gaskets. I guess your block isn't O ringed for piano wire yet?
take a look at this range
ive just purchased a set for my blown alky small block, people ive spoke to who use them really rate um!
http://www.scegasketsonline.com/products/ics.html
best of luck
mat
ive just purchased a set for my blown alky small block, people ive spoke to who use them really rate um!
http://www.scegasketsonline.com/products/ics.html
best of luck
mat
MARSHO said:
Hi, I have had a look on the web site and cant find a copper head gasket to suit the rover v8 4.6 engine (94mm bore), the heads are ringed but the last two times I have been out I have blown gaskets , if anyone knows the part number on that site I would appreciate it, regards David.
I had some copper decompression plates for my 4.6 made at Ferriday Engineering ( www.ferriday.co.uk ) so they certainly have the pattern for them.Im confused in what to do now. As some say o rings and some sites say there is no need. I have 96 mm top hat linners so there is not much room to ring my block and my heads have been skimmed a few times so if i get some new rings in and then blow them out again and have to have them skimmed to get the groove out for it re ringed i might be at the limit. Is this a dilema ?
I used bog standard 4.6 composite gaskets on my 4.6 twin turbo rover V8 with ARP studs.
I never had any problems.
Before that with smaller capacity engines, I tried one with 1/2" studs, and also wire ringing the head via Real Steel.
Either way, I never had any gasket problems, so for the 4.6 I just used factory parts with the std size ARP studs.
On the SCE's
I considered the SCE Titan's for my LS1...and have a set sitting here...have had for a year or more now. I havent seen enough positive reports on them to make me risk them though.
I never had any problems.
Before that with smaller capacity engines, I tried one with 1/2" studs, and also wire ringing the head via Real Steel.
Either way, I never had any gasket problems, so for the 4.6 I just used factory parts with the std size ARP studs.
On the SCE's
I considered the SCE Titan's for my LS1...and have a set sitting here...have had for a year or more now. I havent seen enough positive reports on them to make me risk them though.
it's generally not the gasket that fails first.It's the way the head is clamped.Gaskets fail on big HP motors because the heads lift and the gasket is burned out.Copper gaskets with rings seal even when the heads lift slightly.Wills rings were also designed for this reason.
Heads with 4 bolts per cylinder are more prone to gasket failiure than heads with 5 or 6 bolts per cylinder.As gaskets go you wont get much better than the Cometic gasket imo...
Heads with 4 bolts per cylinder are more prone to gasket failiure than heads with 5 or 6 bolts per cylinder.As gaskets go you wont get much better than the Cometic gasket imo...
v8 jago said:
Not 100% sure on the compression but it should be in the 12s and its a 10 bolt with it been a x bolted 4ltr bottom end.
In the 12's and 180 gas!!!Ouch, not so suprised now. I guess you retard the ignition by quite a lot.
At least we cant blame the old 14 bolters for pulling outwards.
Hope you get it sorted soon.
v8 jago said:
I thought it would be best to as on this part of the forum as there are lightly to be people who have had the same trouble.
Ive bought some copper head gaskets for my 5ltr rover v8 (with top hat linners), I torqed them down more than needed and i think i moved a cylinder out into the water way on the gasket when i forgot to retard my timing while using 180hp of gas Ive since been told to just seal round the water ways then ive also been told to get that copper gasket sealing spray and a few people have said copper gaskets wont work without O rings in either the head or the block.. Im confused as to what i should do as i run quite high compression and just want them to seal. Does anyone rate the copper gasket sealing spray ?? Any answers or advice would be greatly appreciated, Thanks
What is this copper sealant/spray and is it really neede?, cheers David.Ive bought some copper head gaskets for my 5ltr rover v8 (with top hat linners), I torqed them down more than needed and i think i moved a cylinder out into the water way on the gasket when i forgot to retard my timing while using 180hp of gas
Ive since been told to just seal round the water ways then ive also been told to get that copper gasket sealing spray and a few people have said copper gaskets wont work without O rings in either the head or the block.. Im confused as to what i should do as i run quite high compression and just want them to seal. Does anyone rate the copper gasket sealing spray ?? Any answers or advice would be greatly appreciated, ThanksGassing Station | Drag Racing | Top of Page | What's New | My Stuff