SBC w/ Vortec Heads, Mutha Thumpr Cam, and Cherry Bombs
first run of the engine in my truck which is a 74 chevy/gmc. built like the budget 350 in hot rod magazine. it makes around 400 hp and 420 lbs/ft of torque. i posted the link below
327 THUMPR CAM FIRST START AFTER REBUILD
THIS IS THE FIRST TIME TRYING TO START MY 327ci SMALL BLOCK CHEVROLET
AFTER REBUILD. THIS LITTLE BEAST HAS BEEN BORED 0.40 OVER WHICH MAKES IT A
333ci I PUT A SET OF ALUMINUM 2.02 1.60's HEADS WITH ROLLER ROCKERS. IT HAS
A RPM AIR GAP INTAKE "POLISHED" WITH A 650CFM HOLLEY CARB, H.E.I & FORCE
IGNITION BOX. MUTHA THUMPR CAM, TRUE DOUBLE ROLLER TIMING CHAIN, ALUMINUM
.PULLEY'S ALONG WITH EVERYTHING ELSE. THIS THING SHOULD BE 400HP EASY. THE
MOTOR STARTED GETTING A LITTLE WARM ABOUT HALF WAY TROUGH THE BREAK IN SO I
CHOSE TO SHUT IT OFF, LET IT COOL & GET SOME MORE COOLANT IN IT AND ANOTHER
FAN ON IT. TELL ME WHAT YOU THINK OF IT.
Small Block Tractor Test Run
This is a short hastily throw together video of me trying out my sister's
pulling tractor. There is something I should make clear before it is asked:
1) Yes I am wearing Crocs.
2) It was laundry day, I don't normally ride around in over sized sweat
pants, tee shirt, and some Crocs.
3) I don't care what you think about Crocs.
1980 Sierra C15 Junkyard L31 Vortec 350 Summit K1107 488 510 Lift Cam Cold Start Rough Idle
Sorry for the bad sound. I never had a phone or camera where the mic
clipped so bad. Junkyard 350 with a Summit K1107 .488/.510 lift cam.
Performer RPM intake. Thrush turbo
mufflers. Flowtech headers. 600 Holley. Long block is as follows...
Early 80s 4 bolt block from a 1 ton van with custom dremel ridge removal
Original cast crankshaft from the same block
130K mile L31 pistons and rods. Factory rings as well. Fresh hone in
Clevite bi-metal bearings
New brass freeze plugs
Stock 130k miles L31 oil pump with Melling driveshaft and new stock oil pan
Stock junkyard Vortec heads with Crane springs. One 906 and one 062
New stock timing set
Summit K1107 hydraulic flat tappet cam
292/302 adv duration
Stock stamped steel 1.5 rockers
Stock centerbolt valve covers
355 Chevy with Vortec Heads 460 Horsepower
Small Block Chevy 355 Hobby Stock engine built by CNC-motorsports.
We build custom race engines for all classes and sanctions all over the
world. Give us a call 800-341-1528 or visit us on-line at
Vortec Cylinder Heads - Summit Racing Quick Flicks
Find out why GM Vortec cylinder heads are a great way to add horsepower to your small
block Chevy. Learn the physical differences between traditional small block
heads and Vortec heads, get a brief history behind Vortec cylinder heads,
and understands what upgrades are required to step up to Vortec-style
383, 388 stroker chevy with comp cams big mutha thumpr
This is a 388 chevrolet engine cold start up. It has a big mutha thumper
cam and 492 dumble hump heads. Heads have been angle milled and bowl
ported with light porting. flat top pistons and block been decked giving
aprox 11.7:1 static compression. 750 edelbrock carb and a dual plane high
rise air gap intake. This is all in a 1960 Chevy truck frame that im
restoring right now. Engine is backed with turbo 350 and ford 9 inch.
http://www.compcams.com See what happens to this Hawaiian beauty when she
takes a ride in a Thumpr™ Cam equipped car.