Torque for aluminum heads
Hey guys,
I just got a set of aluminum bowtie heads and need to know the torque specs. Also would it be beneficial to add head studs and coper head gaskets while I have the engine apart. Thanks in advance. Chris |
I torqued my old big block GM ALUM heads to 75 ftlbs. The new Brodix I just got had a paper with them that said to torque them to 70 ftlbs.
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What Tod said, but i perfer the copper gaskets because you can use them over and over again, you didn't say if it's s/blk or b/blk. I always stud a s/bk but the last motor i built 476" b/blk 2 milk crate motor we used Felpro and ARP head bolts. Not my choice but the owner did not want to spend the money.
Zip. |
Originally Posted by zipper06
What Tod said, but i perfer the copper gaskets because you can use them over and over again, you didn't say if it's s/blk or b/blk. I always stud a s/bk but the last motor i built 476" b/blk 2 milk crate motor we used Felpro and ARP head bolts. Not my choice but the owner did not want to spend the money.
Zip. |
Originally Posted by Tod74
Originally Posted by zipper06
What Tod said, but i perfer the copper gaskets because you can use them over and over again, you didn't say if it's s/blk or b/blk. I always stud a s/bk but the last motor i built 476" b/blk 2 milk crate motor we used Felpro and ARP head bolts. Not my choice but the owner did not want to spend the money.
Zip. |
Originally Posted by Tod74
Originally Posted by zipper06
What Tod said, but i perfer the copper gaskets because you can use them over and over again, you didn't say if it's s/blk or b/blk. I always stud a s/bk but the last motor i built 476" b/blk 2 milk crate motor we used Felpro and ARP head bolts. Not my choice but the owner did not want to spend the money.
Zip. Studs are great when on a Dragster ... but try taking a cyl. head off of the engine in most any door car. no fun at all. I'm ' returning " to bolts in my cars .... |
Cris- Duane brought up a good point about taking off the heads while in the door car with head studs..it could be a challange..to the point of having to yank out motor or at least pull forward..
if ya wanting the extra sealing power around the cylinder then i would check into the FEL-PRO MLS head gasket's..about $200 for the set and use head bolts the closest thing to o-ringing a block without doing it. ( i have a little un-fair advantage of your situation then most people cause the motor use to be mine) so i know your motor pretty good LOL...unless your gonna spray the thing or convert it to a blower motor and pack the cylinders i would not sweat the head studs etc....the copper gaskets are great as zip said for re-use but my opinion on this is Copper head gaskets are a great match for a o-ringed block,head studs and of course a good dose of Hylomar.. can you use one without the other...YES!...but its like swimming with your clothes on...lol :roll: the motor has ran for 8 years with Regular Fel-pro head gaskets and head bolts at 13 to 1 compression.. just my take on it. Brian |
Originally Posted by bjuice
Cris- Duane brought up a good point about taking off the heads while in the door car with head studs..it could be a challange..to the point of having to yank out motor or at least pull forward..
if ya wanting the extra sealing power around the cylinder then i would check into the FEL-PRO MLS head gasket's..about $200 for the set and use head bolts the closest thing to o-ringing a block without doing it. ( i have a little un-fair advantage of your situation then most people cause the motor use to be mine) so i know your motor pretty good LOL...unless your gonna spray the thing or convert it to a blower motor and pack the cylinders i would not sweat the head studs etc....the copper gaskets are great as zip said for re-use but my opinion on this is Copper head gaskets are a great match for a o-ringed block,head studs and of course a good dose of Hylomar.. can you use one without the other...YES!...but its like swimming with your clothes on...lol :roll: the motor has ran for 8 years with Regular Fel-pro head gaskets and head bolts at 13 to 1 compression.. just my take on it. Brian Chris |
Originally Posted by Tod74
Originally Posted by zipper06
What Tod said, but i perfer the copper gaskets because you can use them over and over again, you didn't say if it's s/blk or b/blk. I always stud a s/bk but the last motor i built 476" b/blk 2 milk crate motor we used Felpro and ARP head bolts. Not my choice but the owner did not want to spend the money.
Zip. JMO Zip. |
Torque 65 ft lbs to a max of 70 ft lbs. Head studs or bolts too tight will do more harm than good.
Small head 6 point ARP Bolts with washers. Head gasket of your choice. For those who asked; You do not want a stud installed in a block tight. I usually screw down by hand and back off by 1/4 turn and use a copper base anti-sieze on the threads lightly. Ed |
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