help with 1g block to 2g

[rayden]

i need some info on using a 2g head on a 1g 6bolt block. when trying to put the head on the 1g arp head studs they wont fit. are the hole for the studs on a 2g smaller than a 1g. if so does this need to be machined bigger. been to magnus and it says nothing about this. i think they used a 1g head so maybe this is why it isnt addressed. if anyone can help email me or post a reply

 

[larryd]

the answer is yes.. the 1g and 2g ARP head studs are different.. the 2g ones are smaller.. you have to drill out the holes from what I was told..

here is the difference

Eclipse 4G63 89-94 16 valve 12mm - 12-Point Nuts
Eclipse 4G63 95-99 16 valve 11mm - 12-Point Nuts

 

[rayden]

thx alot bro. thats what they thought. just double checking

 

[rayden]

thx alot bro. thats what they thought. just double checking

 

[larryd]

np