Aussie head 400 pistion source
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Laughing Gas
Joined: Aug 2010
Posts: 896
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From: Bothell
Aussie head 400 pistion source
Was just looking around at Tim's web site and it now says that the aussiehead 400 pistons will be discontinued.
I'd just go ahead and order a set now for my build except that I won't beable to determine final bore size for a few months or more.
Does anyone have a backup source for these types of pistons. Yes custompistons would be an option but wow that's a lot of $$$
I'd just go ahead and order a set now for my build except that I won't beable to determine final bore size for a few months or more.
Does anyone have a backup source for these types of pistons. Yes custompistons would be an option but wow that's a lot of $$$
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Laughing Gas
Joined: Aug 2010
Posts: 896
Likes: 55
From: Bothell
Talked to Tim and his suggestion for an alternative was custom pistons. He had one set of 020 over pistons for the aussie heads left so I bought them and now have to hope that my block can be cleaned up at 020 over or I'll have to hunt down a block that can be.
Lots of 351c pistons would fit but with the 60cc-ish chamber size of the aussie heads there is no sorce for a 30+cc dish 351c piston to maintain a reasonable compression ratio.
I wouldn't go through all this trouble except for the fact that I already have fully reconditioned aussie head.
Lots of 351c pistons would fit but with the 60cc-ish chamber size of the aussie heads there is no sorce for a 30+cc dish 351c piston to maintain a reasonable compression ratio.
I wouldn't go through all this trouble except for the fact that I already have fully reconditioned aussie head.
Laughing Gas
Joined: Nov 2002
Posts: 1,198
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From: Fairmont
Aussie pistons are officially gone.
Jake snagged the last set.
I have looked at many off the shelf pistons, none of the pistons currently being made have a dish large enough for use in a 400 with the 302 Cleveland heads.
I thought about installing pin bushings offset to obtain our "Zero" deck height.
If you take the biggest dish (13cc) bush the rod, it would sit about .050" down in the hole, and still yield 10:1 C/R. If your going to leave the piston down in the hole that far, then why use the Aussie heads then.
A zero deck height pistons requires 30cc dish.
So why don't we make them anymore, the last set that Jake bought was manufactured April 2011. That is way to long for inventory to be sitting on the shelf.
Jake snagged the last set.
I have looked at many off the shelf pistons, none of the pistons currently being made have a dish large enough for use in a 400 with the 302 Cleveland heads.
I thought about installing pin bushings offset to obtain our "Zero" deck height.
If you take the biggest dish (13cc) bush the rod, it would sit about .050" down in the hole, and still yield 10:1 C/R. If your going to leave the piston down in the hole that far, then why use the Aussie heads then.
A zero deck height pistons requires 30cc dish.
So why don't we make them anymore, the last set that Jake bought was manufactured April 2011. That is way to long for inventory to be sitting on the shelf.
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