Author Topic: mild head work advise  (Read 2077 times)

Online spmoto

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mild head work advise
« on: December 08, 2023, 01:35:24 PM »
I would like to have the heads on my G5 massaged a bit. I'd like to open up and flowed for 36mm carbs, valves and guides etc. I haven't had a need for this kind of work since Manfred Hect of Raceco fame passed. Any recommendations? Thanks,
Steve

Offline guzzisteve

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Re: mild head work advise
« Reply #1 on: December 08, 2023, 04:24:04 PM »
I know Ace Malott has a flow bench and does head work. MGNOC past MO rep.
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Online spmoto

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Re: mild head work advise
« Reply #2 on: December 08, 2023, 04:30:22 PM »
Thanks Sreve

Offline Turin

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Re: mild head work advise
« Reply #3 on: December 08, 2023, 08:45:04 PM »
Any engine mods? if not you could just blend the intake port to the manifold with a dremel.
2007 Griso 1100
1998 Centauro GT
1997 Daytona RS
1991 Rennsport California III
1991 LeMans 1000
1987 LeMans SE Dave's Cycle Racer
1985 Sidlow Guzzi
1984 LeMans III
1974 850-T Sport
1969 A-series Ambassador
1982 Alfa Romeo GTV6 Balocco SE 3.0

Offline johnwesley

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Re: mild head work advise
« Reply #4 on: December 10, 2023, 08:49:19 AM »
Ace did the heads on Dad’s 1100 guzzi and it runs well.
Arkansas MGNOC rep
2003 cal ev custom build/ adv scrambler thing
2000 Quota
1989 cal III FF
1985 cal II
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Offline Turin

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Re: mild head work advise
« Reply #5 on: December 10, 2023, 02:15:08 PM »







here is the job my buddy Tom Hull did on my 850T heads. Thinner copper head gaskets were used.
2007 Griso 1100
1998 Centauro GT
1997 Daytona RS
1991 Rennsport California III
1991 LeMans 1000
1987 LeMans SE Dave's Cycle Racer
1985 Sidlow Guzzi
1984 LeMans III
1974 850-T Sport
1969 A-series Ambassador
1982 Alfa Romeo GTV6 Balocco SE 3.0

Online spmoto

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Re: mild head work advise
« Reply #6 on: December 10, 2023, 02:43:35 PM »
Thanks Turin. So, I assume you stayed with the small valves? What size carbs did you use, 36's? Years ago I met Tom, very briefly. Some time in the late 80's my wife and I did a fly and ride to Buy a Cal II from Dave. We had a great experience and ended up going back a couple more times. It was the same weekend in May as the Arizona MGNOC rally which used to be the kick-off rally of the year.
Steve

Offline Turin

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Re: mild head work advise
« Reply #7 on: December 10, 2023, 06:43:39 PM »
Cool! Dave is the one who turned me onto Guzzi's when I was in high school! The Best! They sold the shop in 1997. I bought Dave's old race bike in peices.
 I'm at Tom's house about once a week.

here is a video of a joyride with Tom.

https://www.youtube.com/watch?v=oW000KavtVI&t=8s

He ported the heads himself and we installed stock sized stainless steel valves. It runs a Norris S / megacycle X9 cam and 36mm delortos. Mistral exhaust with conti rep mufflers. Compression was bumped / squish set at .040 with thinner copper head and base gaskets.

The T it pulls harder down low than my lemans 3.
2007 Griso 1100
1998 Centauro GT
1997 Daytona RS
1991 Rennsport California III
1991 LeMans 1000
1987 LeMans SE Dave's Cycle Racer
1985 Sidlow Guzzi
1984 LeMans III
1974 850-T Sport
1969 A-series Ambassador
1982 Alfa Romeo GTV6 Balocco SE 3.0

 

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