Franz And Grubb Engine

Franz And Grubb Engine Vintage Triumph Motorcycle Engine and Parts Specialists Pre Unit and Unit engine specialists for year range 1946-1978 Triumph Twin Motorcycles.
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Cylinder heads, Cylinders, Engine reconditioning, and spares for your classic or hot rod Triumph. Top quality work done in a reasonable time frame by competent gentlemen for a fair market price.

05/27/2026

Checking rod to cylinder clearance! Only one way to know. Had to relieve the skirts a little bit. Can’t wait to hear it run.

INFO SERIES finally done! PRINT ONLY. No AI slop. Real words from a real shop owner. Get yours in the mail!
05/18/2026

INFO SERIES finally done! PRINT ONLY. No AI slop. Real words from a real shop owner. Get yours in the mail!

05/11/2026

F&G INFO SERIES booklet on motor oil almost finished! All oil back in stock, and booklet will be printed soon! Shipping the green oil everywhere in the USA!

BORN FREE 1, 2009. What a cool show and amazing bikes. Can’t believe it is coming up on 17!
05/11/2026

BORN FREE 1, 2009. What a cool show and amazing bikes. Can’t believe it is coming up on 17!

Flywheel was hitting the cams. Could have been the .400” lift- now it has clearance if the crank flexes. Also ARP flywhe...
05/04/2026

Flywheel was hitting the cams. Could have been the .400” lift- now it has clearance if the crank flexes. Also ARP flywheel bolts to keep it together!

BORING! One of my favorite tools. This boring bar has done cylinders for lots of land speed holders, show bike winners, ...
04/29/2026

BORING! One of my favorite tools. This boring bar has done cylinders for lots of land speed holders, show bike winners, and everything in between.

How to make a Triumph head gasket not leak. Clean with acetone. Spray with HYLOMAR aerosol. Let gasket air dry. Torque a...
04/23/2026

How to make a Triumph head gasket not leak. Clean with acetone. Spray with HYLOMAR aerosol. Let gasket air dry. Torque as normal. It’s an amazing sealant. triumph.

MORE cam timing! I made a cool fixture to set up dial indicators on a Triumph to check cams-still perfecting it but it w...
04/18/2026

MORE cam timing! I made a cool fixture to set up dial indicators on a Triumph to check cams-still perfecting it but it will be for sale someday (with a degree wheel)

Camshaft timing! The only way to know is to check. The stock timing marks are not relative to aftermarket cams. Don’t ri...
04/15/2026

Camshaft timing! The only way to know is to check. The stock timing marks are not relative to aftermarket cams. Don’t rip yourself off on performance, always verify the cams.

The easiest way to install rubber parts of all types! Will not degrade rubber like oil does. Dries in 1 hour. Worldwide ...
04/14/2026

The easiest way to install rubber parts of all types! Will not degrade rubber like oil does. Dries in 1 hour. Worldwide shipping too!

AWESOME
04/13/2026

AWESOME

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5149 Strohm Avenue
North Hollywood, CA
91601

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