340dart.812 said

Here is the new hyd thumper cam from comps website


Product Details
COMP Cams #CL20-600-4 Thumpr™

CHYSLER MOPAR 273-360 HYDRAULIC FLAT TAPPET CAMSHAFT & LIFTERS

Chrysler 273-360 C.I. 8 CYL. 1964-2000


Hydraulic-(Thumpr™) High performance street, stock converter ok, best with 2000+ converter and gears, choppy/thumping idle.



Now available for hydraulic flat tappet applications, COMP Cams® new Thumpr™ Camshafts are the hottest cam series to hit the streets in more than a decade. Street rodders and muscle car enthusiasts just can’t get enough of the incredible exhaust sound and equally impressive performance delivered by these innovative camshafts. Applying a new camshaft design concept originally created for sports car endurance racing, the COMP Cams® engineering team incorporated early exhaust valve opening, long exhaust duration and a generous amount of intake and exhaust overlap to maximize your engine’s nasty-idling characteristics without negatively impacting power output or streetability.





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20-600-4
Hyd.
Hyd.2000-5800
297TH7
279/296
227/241
.486 .473 107°

Rumblefish I have the older version of that crane cam it is .464 .497 lift powermax cam that is a great cam for mild 360 build with the 112 lobe sep
I went 13.1 @102mph with some 1.88 valve heads and the performer intake and 3.91 gears with that cam and it had loads of torque it felt as good as my 408 down low sometimes going bigger is not always better

BUILD STREET DRIVEN CARS FOR TORQUE!!!

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340dart.812 said

just port match the intake to the gasket.
Put the gasket up to the intake line up the bolt holes and mark where the gasket lays spray paint over the gasket
Then do the same for the heads and grind off the area that is painted
maybe someone else could explain better
if you are going with 3.23 gears use the performer intake mare bottem end

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