New 290 HP Crate Motor - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**1970 CST Short Wide** · 05-19-2004, 01:15 PM

Bought this yesterday for my son's 71. The old 283 that the last owner put in gave up. Chevy just came out with this one a few weeks ago. Not bad for $1599

It goes in this week-end, I'll let you know how it goes

Description
350/290 HP Technical Information
Horsepower ...... 290 @ 5100 RPM
Torque .......... 326 Ft. Lbs. @ 3750
Max. Recommended RPM .... 5100
Compression Ratio ....... 9.5:1
Block .................10066034
iron four bolt with two
piece rear main seal
Connecting Rods .. 10108688 Powdered Metal
Pistons & Pins.....12514101 Aluminum
Piston Rings ......12507985
Camshaft ..........3896962 Flat Tappet
Rocker Arm.........10089648 1.5 Ratio
Intake Valves .....10093027 1.94"
Exhaust Valves ....14095451 1.50"
Lifters ...........5232720 Flat Tappet
Oil Pump ..........12555284
Oil Pan ...........10066039
Spark Plugs .......R45TS Ignition Timing ...34deg
Fuel...............87 Octane

NOTE: The 290 horsepower was attained on the Dyno with the following specifications:

Carburetor.............600 CFM Holley (4150) P/N 12497147
Headers....1 3/4 inch diameter x 35 inch long with 3 inch collector
Timing.....34 degree BTDC total advance

nevada70chev · 05-19-2004, 01:27 PM

thinking about getting a new motor sometime, so i researching. where did you get it? also warranty? anything else? thanks.

**1970 CST Short Wide** · 05-19-2004, 01:35 PM

My local Chevy Dealer had it in stock. 12 month 12,000 mile warrantee if they install. 1 year on parts if you install

busterwivell · 05-19-2004, 02:40 PM

I wonder if that's emissions legal for my 86 Monte Carlo SS? Is it just a long block?

**1970 CST Short Wide** · 05-19-2004, 03:20 PM

This is where I got the info. I then called my LOCAL dealer to see what they had and to my surprize they had 4 in stock. Oh yea and they had the race version of the 572 $13,000 and some change

https://www.gmpartsdepot.com

71HUGGER396 · 05-19-2004, 03:50 PM

I think this is the best deal going for an engine. When I need one this will be the one I get.

kickinasphalt · 05-19-2004, 07:37 PM

Is this a Goodwrench motor or a GM Performance Parts motor? I take it must be a long block (no intake manifold).

NEVERMIND: Found all info here: https://www.gmpartsdepot.com/store/p...roduct_ID=1835

I bet with an Edelbrock Performer EPS intake this motor would make a bit over 300 horse.

05-19-2004, 01:15 PM	#1
1970 CST Short Wide Senior Moment Join Date: Mar 2002 Location: Pittsburg Ca Posts: 4,111	New 290 HP Crate Motor Bought this yesterday for my son's 71. The old 283 that the last owner put in gave up. Chevy just came out with this one a few weeks ago. Not bad for $1599 It goes in this week-end, I'll let you know how it goes Description 350/290 HP Technical Information Horsepower ...... 290 @ 5100 RPM Torque .......... 326 Ft. Lbs. @ 3750 Max. Recommended RPM .... 5100 Compression Ratio ....... 9.5:1 Block .................10066034 iron four bolt with two piece rear main seal Connecting Rods .. 10108688 Powdered Metal Pistons & Pins.....12514101 Aluminum Piston Rings ......12507985 Camshaft ..........3896962 Flat Tappet Rocker Arm.........10089648 1.5 Ratio Intake Valves .....10093027 1.94" Exhaust Valves ....14095451 1.50" Lifters ...........5232720 Flat Tappet Oil Pump ..........12555284 Oil Pan ...........10066039 Spark Plugs .......R45TS Ignition Timing ...34deg Fuel...............87 Octane NOTE: The 290 horsepower was attained on the Dyno with the following specifications: Carburetor.............600 CFM Holley (4150) P/N 12497147 Headers....1 3/4 inch diameter x 35 inch long with 3 inch collector Timing.....34 degree BTDC total advance __________________ 1970 CST LS 1 6 speed Ford 9 inch Detroit Tru Track, Dakota Didgital, Vintage Air, QA1 Coil Overs Front & Rear Lots of FUN 2013 GMC PU, Oldest Son 71 GMC LWB. QA1 Suspension, Angry SB. Youngest Son 2019 GMC Diesil Dually. Youngest Son 2017 Toyota SUV Daughters car 2018 Traverse , Wife’s Ride Pittsburg Ca 94565 Last edited by 1970 CST Short Wide; 05-19-2004 at 01:26 PM.

05-19-2004, 01:27 PM	#2
nevada70chev Registered User Join Date: Jul 2001 Location: reno, nv Posts: 646	where did you get it? thinking about getting a new motor sometime, so i researching. where did you get it? also warranty? anything else? thanks. __________________ 70 LWB, 350/350 A/C, P/S, 3 Tone Paint (white cap, primer gray with black guide coat)

05-19-2004, 01:35 PM	#3
1970 CST Short Wide Senior Moment Join Date: Mar 2002 Location: Pittsburg Ca Posts: 4,111	My local Chevy Dealer had it in stock. 12 month 12,000 mile warrantee if they install. 1 year on parts if you install __________________ 1970 CST LS 1 6 speed Ford 9 inch Detroit Tru Track, Dakota Didgital, Vintage Air, QA1 Coil Overs Front & Rear Lots of FUN 2013 GMC PU, Oldest Son 71 GMC LWB. QA1 Suspension, Angry SB. Youngest Son 2019 GMC Diesil Dually. Youngest Son 2017 Toyota SUV Daughters car 2018 Traverse , Wife’s Ride Pittsburg Ca 94565

05-19-2004, 02:40 PM	#4
busterwivell Registered User Join Date: Jan 2002 Location: Sahuarita, AZ USA Posts: 2,033	I wonder if that's emissions legal for my 86 Monte Carlo SS? Is it just a long block? __________________ Bill - Tucson, AZ 47 Chevrolet 2 dr sedan 56 Chevrolet 210 2 dr sedan 66 Chevrolet Malibu 2 dr 4 speed 71 Chevrolet C30 Longhorn 86 Chevrolet Monte Carlo SS (Sold) 01 Chevrolet Tahoe IM - BUSTERWIVE@aol.com

05-19-2004, 03:20 PM	#5
1970 CST Short Wide Senior Moment Join Date: Mar 2002 Location: Pittsburg Ca Posts: 4,111	This is where I got the info. I then called my LOCAL dealer to see what they had and to my surprize they had 4 in stock. Oh yea and they had the race version of the 572 $13,000 and some change https://www.gmpartsdepot.com __________________ 1970 CST LS 1 6 speed Ford 9 inch Detroit Tru Track, Dakota Didgital, Vintage Air, QA1 Coil Overs Front & Rear Lots of FUN 2013 GMC PU, Oldest Son 71 GMC LWB. QA1 Suspension, Angry SB. Youngest Son 2019 GMC Diesil Dually. Youngest Son 2017 Toyota SUV Daughters car 2018 Traverse , Wife’s Ride Pittsburg Ca 94565

05-19-2004, 03:50 PM	#6
71HUGGER396 Confirmed Truckaholic Join Date: Oct 2000 Location: Sarver,PA 16055 Posts: 732	I think this is the best deal going for an engine. When I need one this will be the one I get.

05-19-2004, 07:37 PM	#7
kickinasphalt Registered User Join Date: Jan 2000 Location: North Dakota Posts: 351	Is this a Goodwrench motor or a GM Performance Parts motor? I take it must be a long block (no intake manifold). NEVERMIND: Found all info here: https://www.gmpartsdepot.com/store/p...roduct_ID=1835 I bet with an Edelbrock Performer EPS intake this motor would make a bit over 300 horse. __________________ 1972 K-10 Longbox,6" lift w/35's/350/SM465/NP205/3.73 1972 C-10 Longbox,350/350 1998 Pontiac Grand Prix GTP FOR SALE: 1971 K-10 Longbox,350/SM465/NP205 Last edited by kickinasphalt; 05-19-2004 at 07:41 PM.



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