Its a stock engine and was fitted over ten years ago ,has finally given up the ghost !
He took it to a dyno day and on the third run it appears to have blown a head gasket
And only made 82 hp at the treads
So I get the job to rebuild it as it was my idea to see what it had
I removed the head ,to find massive amounts of corrosion around the water jackets (nothing unusual for its age)
As I would like to build something healthy on his buget I thought I will do all the research on what the start point is
I cc'ed the astron 1 cylinder head
No 1 55.2 cc
No 2 56 cc
No 3 55.7 cc
No 4 55.3 cc
Head gasket 8.4 cc
Dished piston 16cc and .050 " thou under the deck
So 7.22 to 1 wtf ?
Shouldn't be too difficult to piece together something to beat that
Anyone else come across a super low comp astron before ?
The plan for now is flat tops with zero deck and a astron 2 head and bring the comp up to 10 or 11 to 1 depending on how small I can make the comp cambers
Cheers stealth