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Author Topic:   355 SHORT STROKE?
DSMFANATIC
Member
posted November 05, 2003 05:31 PM
WE RUN ON 1/4 MILE AND 3/8THS OVALS AND OUR CUBIC INCH LIMIT IS 360. WE ARE HAVING OUR ENGINES PRO BUILT THIS YEAR DUE TO INCREASING COMPETITION. OUR NEW BUILDER WANTS TO PUT TOGETHER A 355 SHORT STROKE(350 CRANK,SHORT 400 RODS,AND ROSS 327 FLAT TOPS) WITH 441X HEADS. HE CLAIMS IT PULLS LIKE A TRACTOR OUT OF THE CORNERS, BUT HP FALLS OFF AFTER 6000 RPM, SO HE SAID TO GEAR IT UP(MAKE THE ENGINE WORK) HE SAID HE HAS HAD AMAZING LUCK WITH THIS COMBO IN WISSOTA STREETS,AND I TRUST HIM. ANYONE EVER RAN THIS SETUP, HOW DO YOU THINK IT WILL HOLD UP? ANY OPINIONS WELCOME!!! THANKS AHEAD OF TIME.


66jj
Member
posted November 05, 2003 08:32 PM
thats not a short stroke its a short rod. thats it..

I aint interested in that combo..

if you really have a 360 only limit the best possible combo would be a short stroke large bore ft with angle milled correctly heads to stand the valves up, the large bore uncovers the valves for more flow, and the short stroke reduces friction, etc.

a bunch of guys will get on here and tell you it wont pull of the corners, at about 1500-2000rpm more than you normally exit the corner it will haul the mail. I drove a buddys car with this motor, and it was insanely fast.

3.25/4.155- 352 cubic inches I believe.

in limited carb motors this combo kills. its basically what cup cars are also running, they are 3.22-3.33 stroke and 4.112 or so bore.

66jj
Member
posted November 05, 2003 08:34 PM
not to mention the 400 rods wont clear a 350 crank I dont think, thats why a 400 is externally balanced the counterweights are smaller so theres not enough there to internal balance.


tilley88
Member
posted November 06, 2003 03:05 AM
Just build ya a long rod 358. Humps like a camel and pulls all day long.


Raz_900
Member
posted November 07, 2003 02:08 PM
400 Block (4.125" bore)
327 Crank (3.25")
6" (or 6.2") Eagle/Scat I beam rods

That makes around 353 CID with a .030" overbore. Will rev to the moon too.... now if only the rules would let me run it.

hughes
Member
posted November 10, 2003 08:06 AM
What kind of pistons do you run with this combo. Is it a special piston or what.


Raz_900
Member
posted November 10, 2003 09:06 AM
Depends on rod length. 6.125" rods are pretty common and can be had for $400-$500 and Wiseco makes a piston to fit. Keith Black makes a piston for 6" rods too.

** edited for corrections **

[This message has been edited by Raz_900 (edited November 13, 2003).]

hughes
Member
posted November 13, 2003 07:17 AM
the bore size would be different? from the 350 to the 400 piston.


Raz_900
Member
posted November 13, 2003 08:28 AM
quote:
Originally posted by hughes:
the bore size would be different? from the 350 to the 400 piston.

duh.. my bad... was just looking at stroke/rod length. Wiseco's chart confused me a little since they list like 6 bore sizes/strokes on 1 line. http://www.wiseco.com/PDFcatalogs/2002_Auto_screen_chevy.pdf



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