• Ciao Guest - You’ve landed at the ultimate Guzzi site. NEW FORUM REGISTRATIONS REQUIRE EMAIL ACTIVATION - CHECK YOUR SPAM FOLDER - Use the CONTACT above if you need help. New to the forum? For all new members, we require ONE post in the Introductions section at the bottom, in order to post in most of the other sections. ALWAYS TRY A SEARCH BEFORE STARTING A NEW TOPIC - Most questions you may have, have likely been already answered. DON'T BE A DRIVE-BY POSTER: As a common courtesy, check back in and reply within 24 hours, or your post will be deleted. Note there's decades of heavily experienced Guzzi professionals on this site, all whom happily give endless amounts of their VALUABLE time for free; BE COURTEOUS AND RESPECTFUL!
  • There is ZERO tolerance on personal attacks and ANY HYPERLINKS to PRODUCT(S) or other competing website(s), including personal pages, social media or other Forums. This ALSO INCLUDES ECU DIAGnostic software, questions and mapping. We work very hard to offer commercially supported products and to keep info relevant here. First offense is a note, second is a warning, third time will get you banned from the site. We don't have the time to chase repeat (and ignorant) offenders. This is NOT a social media platform; It's an ad-free, privately funded website, in small help with user donations. Be sure to see the GTM STORE link above; ALL product purchases help support the site, or you can upgrade your Forum profile or DONATE via the link above.
  • Be sure to see the GTM STORE link also above for our 700+ product inventory, including OEM parts and many of our 100% Made-in-SoCal-USA GTM products and engine kits. In SoCal? Click the SERVICE tab above for the best in service, tires, tuning and installation of our products or custom work, and don't miss our GT MotoCycles® (not) art on the BUILDS tab above. WE'RE HERE ONLINE ONLY - NO PHONE CALLS MADE OR RECEIVED - DO NOT EMAIL AND ASK QUESTIONS OR ASK TO CALL YOU.
  • Like the new V100, GuzziTech is full throttle into the future! We're now running on an all-new server and we've updated our Forum software. The visual differences are obvious, but hopefully you'll notice the super-fast speed. If you notice any glitches or have any issues, please post on the Site Support section at the bottom. If you haven't yet, please upgrade your account which is covered in the Site Support section or via the DONATE tab above, which gives you full site access including the DOWNLOADS section. We really appreciate every $ and your support to keep this site ad-free. Create an account, sign in, upgrade your account, and enjoy. See you on the road in 2024.

Conversion- will the main components of a Breva 1100 engine fit into a sp3 block motor???

JuanGe

Just got it firing!
Joined
May 21, 2019
Messages
1
Location
Buenos Aires
Hi all, I am relatively new in the Guzzi's world, just bought an old GT1000 (it might be a sp2 though), year 1992 that needs to be fully restored. To be honest, what I actually bought is an incomplete engine (with so many missing pieces that it is not worth to buy them all to revive this engine) mounted into an old frame (again, no wheels, no gear box, no transmission, etc etc), but matching numbers and documents are there :)

Said that, I bought it because a friend of mine has a Breva 1100 that he could sell me for my project (he had a major accident with it and almost destroyed it -happily he just had minor injuries!!!-).

So, given the circumstances, I am planing now to convert my GT1000 into a modern cafe racer by using the parts of the crashed Breva 1100, and I would like to start with the engine. By looking at both engine block's (GT1000 and Breva 1100) externally, they look identical....

So the question is: would it be possible to "transfer" all parts of a Breva 1100 engine (everything!! including pistons, cylinders, crankshaft, etc etc) into a GT1000 block motor?

I will really appreciate your feedback. it will help me to decide if I take the Breva or I start looking for a cheap GT1000 of the nineties...

looking forward!
 
Setting up the charging system could be a bit of a challenge. The Breva crankshaft is set up to drive a belt, not a crankshaft mounted alternator rotor. I'd see if I could use the crankshaft from the GT and the charging system so it would fit in the GT frame. Although if you get creative you may be able to work something out with the Breva crankshaft. Also consider, the wrecked Breva engine may look OK, but there could be hidden problems.
 
I thought he meant putting the Breva engine complete into the other frame.

Brian, from his post

"So the question is: would it be possible to "transfer" all parts of a Breva 1100 engine (everything!! including pistons, cylinders, crankshaft, etc etc) into a GT1000 block motor?"

Also I agree a complete engine swap might be easier but you would have to figure out how to accommodate a charging system and use the Breva harness for the FI to function.
 
Back
Top