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Briggs OHV & Vanguard / Parts for big block vanny 35hp
« on: September 03, 2014, 10:11:05 am »
Can anyone tell me the best place or where I can get parts for a 35hp big block vanguard?
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I'm not real hip on specific motor specifications and how to figure such things although I have read a lot on the forum. What are your opinions on the type of motor to use given the rules included below. Leaning toward a command but im not really sure what would be the best. whats the best ci. I could get out of a command .030 over?
thanks in advance for your help.......
1. Engines may be 1 or 2 cylinders, not exceeding 50 cubic inch from the OEM. Single engine only, multiple engines are not allowed. Single cylinder engines are allowed to bore and stroke to 50 ci.
2. Must have garden tractor type carburetor, 1.2†maximum venturi. Maximum 1" carburetor standoff is allowed.
3. Cylinder must not exceed 0.030 over original bore diameter.
4. Stroke must meet OEM spec for that engine.
5. Porting and polishing allowed.
6. Stock valve diameters only for block being used.
7. No aftermarket blocks allowed.
8. Heads must be OEM stock. Head modifications are allowed.
9. Gasoline, diesel or alcohol.
10. Exhaust may be modified.
11. Engines may be changed.
12. Engine RPM may be modified. Over 4000 rpm requires steel or billet flywheel with minimum 1/8 inch steel or 1/4 inch aluminum 360 degree shield.
13. Camshaft modifications are allowed.
14. Engines must be naturally aspirated.
Hey there. I run two kohler commands and a briggs vanguard. My commands run strong, one is a 38ci motor and is legal for what you are saying here. The motor is bored .030" over with JE flat top pistons and mid west supercub billet rods. The heads have been ported and polished with the intake valve in the intake and exhaust. We shaved around .050" off the stock heads and running a 2 barrel carb. We bought stock adjustable pushrods and solid lifters. Our motor turns around 7000-7500rpm's, plus we have a steel adjustable flywheel from midwest also.