Description: High Nickel GM #3970010 Engine Block "010 020" Marked Block decoding High Nickel! Winters GM Aluminum High Rise Intake Forged .030 pistons yielding right around 10.3:1 static compression for pump gas operationHigh Flow High Horse 64cc Fuelie Heads (Matched Pair Dated C 18 70) 8" BalancerHolley Dual Feed Double PumpZ/28 Checkered Flag Valve Covers Brass Freeze plugs during rebuild-Rebuilt .030 over (355ci)Hot Street/Strip Cam Sounds Awesome/Agressive/ But Very Street Friendly *"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 for a customer who wants to buy the Camaro with L78 big block 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.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! 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. Fuel pump, pulleys, and motor mounts are not included at buy it now price.
Price: 12895 USD
Location: Angola, Indiana
End Time: 2023-12-21T15:55:54.000Z
Shipping Cost: 395 USD
Product Images
Item Specifics
Returns Accepted: ReturnsNotAccepted
Return policy details:
Interchange Part Number: 3970010 CTC, LT1 350 360HP, LT1 350 370HP, 1969 Z/28, 3927186 HEADS, L48 300HP, 1970 CAMARO SS ENGINE, 3972116, 3972110, ss rs camaro motor engine, 302 DZ, 302 MO, CHEVY ENGINE, CHEVY MOTOR, 1969 1970 CAMARO Z/28, 1970 LT1 MOTOR, 350 360HP, 350 370HP, 302 290HP, 350 350HP
Manufacturer Part Number: CHEVROLET Z28 SS
Other Part Number: CTB, CTC, MO, MN, DZ, LT1 350 370HP
Brand: 3970010 BLOCK
Vintage Part: Yes
