Open Gx200 vs alky briggs

JRW31526

Member
Okay, me and my friend are racing when i get my motor built, and i was wondering what you think about it, and who will most likely win.

Modified Gx200: All head work done by Dave Lewis

tilly 304wx on alky
14cc head milled .060 (.048 head gasket)(~ 13.6 compression ratio)
ported polished
.930 J-header
28.5/25mm valves
dual 55 lb springs
champion rockers
isky billet lifters
5.070 shorter pushrods (1/4 diameter)
isky 360 cam (260* duration)
max stroke crank (2.133, hardened & balanced)
arc .020 rod
honda flat top piston (std boar)
arc billet flywheel (32* timing)
16/53 gearing

VS.

5hp dual ball bearing block:

heads milled ~.030
~ 27.5/24 valves
dual valve springs
~ .380 lift cam ( dont know actual cam specs all i know is it dosent have a lot of duration)
billet flywheel and rod
stroker crank
tilly 348 alky
advanced timing
piston is .010 over
18/56 gearing

just wondering who would win in the straights, he clocked his motor in at 65mph @~9200 rpm
 

mikelavite#72

Premium User
i have a Open Flathead that has made many a Open Honda and Clone guys scratch their heads in disbelief ....................;)
 

Kart43

Member
An over head valve engine should always shine over the flat head, so the open Honda was not built to the same level as the flathead.
 
This is why I like our rules for this engine class.lot of work went into it to be fair for all.
Their is a post about all this under limited mod clone.And again driver skill and setup
plays a big roll into this too.
 
Top