High Nickel GM #3970010 Engine Block "010 020" Marked Block decoding High Nickel!
Optional Winters GM Aluminum High Rise Intake
Forged .030 pistons yielding right around 10.3:1 static compression for pump gas operation
High Flow High Horse 64cc Fuelie Heads
8" Balancer
Holley Dual Feed Double Pump
Mallory HEI Ignition (Can install GM Points Distributor w/ black cap if you want it to look like 1969 -1970 distributor)
Z/28 Checkered Flag Valve Covers
Wieand High Rise Aluminum Intake (Can install GM Winters Z/28 Intake if desired)
Brass Freeze plugs during rebuild-Rebuilt .030 over (355ci)
Hot Street/Strip Cam similar to Z/28 Camshaft
*"Some of the smallblock motors used blocks with an additional 1% tin and
an additional 2% nickel added to the cast iron alloy. These very
desirable blocks can be identified by looking at the block face under
the timing chain cover for "010" and "020". These designators can also sometimes be found on
the rear face of the block inside the perimeter of the bellhousing
mating surface." Cited: Motec
This is a very
good running small block Chevrolet V8 engine removed from my 1970 Camaro. It is similar to the 1970 LT1 Z/28 Camaro and Corvette engine but feels much more
powerful. It is VERY FAST and runs very good whether it is winter or hot
summer. Engine has been broken in and tested in my 1970 Camaro and I am
now taking it out to install a big block. I am not taking this out to
gain more power from the big block, actually this engine runs faster
than most big block cars I have driven. I am only doing it because I am
restoring the Camaro back to the correct engine block casting numbers
and date codes for this cars trim tag and so the big block is getting
installed. You will not be disappointed in this small block, it is one
of the best running muscle car engines I have ever had the privilege to
drive and enjoy and is extremely reliable. Trust me, I am a 25+ year
engine build and full machine shop owner with dyno facility. Most motors
are hard to tune, have cam or carb or ignition bugs--this one does not.
It does have a lopey street /strip performance camshaft in it, but it
is very streetable in that power brakes work well with it and it starts
right up and runs great at idle, mid throttle, and high RPM.
This
engine has in it the same type of head used on the 1969 and 1970 Z/28
with the smaller 64cc chamber and high flow runner--these heads are
dated 1970. Also, 1970's vintage hihg nickel 3970010 engine block. I estimate this motor makes around 420hp at 5500rpm and
around 450ft lbs torque. This engine has on it the hi-po 8" balancer GM vintage timing cover with the highly sought after A E O timing tab for 8" balancer. The balance is also correct 8" GM balancer correct for the timing cover. I am beginning to remove this engine on
8/1/2019 from the Camaro. I just drove it on a 100 mile round trip to
have black vinyl top re-installed back on the Camaro after having it
painted back to its correct GM born color, and this engine was a please
to drive, even though it was 90+ degrees F and was driven on I-69 with
70MPH speed limit for 40 miles each direction. This engine has been
cared for and zinc put in with last oil change and has only been used
for hot rod cruising around and has not been raced since I have had it.
It runs better than a brand new engine. It is tuned correctly and broken
in successfully! I cam make any changes to this engine you may want
since I own a full engine shop subject to a price change. Inquire for
details. I can install the 1969-1970 Camaro Winters GM intake if you do
not want the painted Weiand on it. This engine was fully rebuilt, honed
and decked, brass freeze plugs and was built for power, performance, and
reliability before it was installed in the Camaro!
MORE INFORMATION ON THE ENGINE:
It has a Weiand aluminum intake on it painted orange to match the Chevy
orange block and a very well tuned and reliable Holley dual feed
4-barrel carb List 4777-7 650cfm double pump!. Also comes with a $300
set of Z/28 Checkered flag valve covers and excellent functioning
Mallory high out put ignition system. You may have this engine turn key
including alternator, pulleys, water pump, carburetor, air cleaner,
valve covers, spark plug wires, and distributor, fuel log and fuel
pressure gauge, oil pan , oil pump, and all engine covers included. I
will include even the correct length belts to spin alternator and
waterpump, if needed!
HEAD AND BLOCK INFORMATION:
Engine Block: 1970's vintage high knicle 3970010
Heads: 1969/1970 Z/28 Style 302/350ci #3947041
"Yes, the 041's are considered fuelie heads (along with the 492, 462,
186, and 461 double hump castings). These are all basically the same
head with a 160-170cc intake runner and were the best that GM offered on
a production vehicle."
"Instead of a double hump identification mark, these high performance
heads have a trangler identification mark. Although they don't have the
double hump, 041 castings have everything else that is desirable in a
high performance head. These heads have a 64cc combustion chamber and
were originally supplied with either a 1.94 or 2.02 intake valve.
However, many times these heads are equipped with a 1.94 in. valve and
so the seats and short-turn radius can be given a super tune-up when cut
for 2.02 valves. The 041's are virtually identical to the 186 double
hump casting, except for the fact that the 041 has accessory bolt holes.
These heads were a wringer when the "double hump" casting were not
legal."
I have a set of 041's in my garage right now (along with two set of 462
double hump heads, on set of 481x heads, and one set of 292 turbo heads)
waiting for me to build a motor to put them on. These heads, while not
all out race pieces, make for a bad street machine when installed on a
properly setup small block."
Mortec also lists 041s as 302/350 performance heads . . .
3947041....69-70...302/350......"Right angle" casting identifier, 64cc chamber, accessory holes, good HP head
"
041 heads: This head is basically the same head as
the 186 head used in the same era. Back then, Chevy always had two
different castings to do the same job just in case a problem was found
in either one, so there would be no interruption in production.
So, both the 186 and the 041 heads were used in the 69 302 Z28 and the
70 LT1 Z28 and Corvette with 2.02 valves, and also in the SS350. They
also were used in the 350hp/350 engines in the Corvettes both years with
2.02 valves.
IMPORTANT: Turn key
option is $500 over the buy it now or best offer price engine sells for.
The buy it now and best offer are for the long block only: consisting
of engine intake to oil pan with valve covers. Fan blade and exhaust
manifolds are not included regardless of whether turn key option is
opted for. Photo of engine is example image of what engine will look like when it ships if one selects the winters LT1 intake option, it is not the actual item.