In a message dated 5/8/2006 5:42:53 P.M. Eastern Daylight Time, [EMAIL PROTECTED] writes:
I am considering having the head on my Spitfire milled down to give me a little more compression. It is a stock 80 head so it is currently about 7.5 to 1. I am thinking of taking it to about 9 to 1. Can anyone tell me how much I would need to take off to get it to that compression? If I do have it milled down, do I need to get shorter pushrods or is that within normal adjustment. When I built up my 1300 small journal engine back in the 70's (it came out of a 68 Mk3) I used the Competition Prep Manual as a guide. They called for milling .110", I milled .100" GT6 stock pistons (flat) gave me .040" overbore This doesn't help much for an '80.... but the heads had a lot more to take off... Check the Comp manual for more info for the newer 1500's Oil pump mods too! Clark 74 Spitfire, 71 Stag "Reality... it's not what you think" Clark W. Nicholls [EMAIL PROTECTED] _www.cwnicholls.com_ (http://www.cwnicholls.com/) fax: 419-844-7564 (yes, 419 provided free by efax.com) phone: 413-243-3433 Your messages not reaching the list? Check out http://www.team.net/posting.html === This list supported in part by The Vintage Triumph Register === http://www.vtr.org === Help keep Team.Net on the air === http://www.team.net/donate.html === unsubscribe/change address requests to [EMAIL PROTECTED] or try === http://www.team.net/cgi-bin/majorcool === Other lists available at === http://www.team.net/mailman/listinfo === Archives at http://www.team.net/archive === http://www.team.net/the-local === Edit your replies!
