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#1 | ||
Hittin E-Z Street on Mud Tires
![]() Join Date: Nov 2004
Location: Greenville, SC
Posts: 23,090
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Which GM crate engine would you buy?
So the engine in my truck is heading south. I think the rings are getting bad along with some other things. Still very drivable, but I have a crapload of OT saved up at work (probably over 120 hours worth by next year) and I'm going to cash it out for a new GM crate engine.
I'm confused about which to get. There seems to be two Gen 1 "generic" engines available. There's this one Quote:
Quote:
It seems to me that the first motor is cheaper and although it makes less HP, it makes its HP at a lower RPM (I've never had my truck revved past 4.5K before), and it has more torque? My truck is not nor will be any kind of a racetruck. I just hope the extra power won't hurt my 700R4 ![]() Thoughts, Opinions? Here's a link: http://store.summitracing.com/egnsea...nresults=false
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Jesse James 1967 C10 SWB Stepside: 350/700R4/3.73 1965 Ford Mustang: 289/T5-5spd/3.25 Trac-Loc 1968 Pontiac Firebird: Project Fire Chicken! 2015 Silverado Double Cab 5.3L Z71 2001 Jeep Wrangler Sport 4.0L 5spd 2020 Chevrolet Equinox Premium 2.0L Turbo 2011 Mustang V6 ~ Wife's ride ![]() American Born, Country by the Grace of God ![]() 1967 CST Shop Truck Rebuild! My 1967 C-10 Build Thread My Vintage Air A/C Install Project "On a Dime" Trying my hand at Home Renovation! 1965 Mustang Modifications! Last edited by 67ChevyRedneck; 09-26-2007 at 01:42 PM. |
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#2 |
Senior Member
Join Date: Dec 2005
Location: TN
Posts: 2,448
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Re: Which GM crate engine would you buy?
Build a motor, don't buy a crate motor!
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1947 International KB-1 1957 Chevy Bel-Air riding low 1962 swb fleetside 2002 Chevrolet Silverado 7-inch lift on 35 Daily driver 2016 Chevy Tahoe Better halves ride Last edited by jkaylor68gmc; 09-26-2007 at 01:41 PM. |
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#3 |
Senior Member
Join Date: Nov 2005
Location: AL
Posts: 2,519
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Re: Which GM crate engine would you buy?
Get you a LQ4 or a LQ9 or a 4.8 or a 5.3 and put in it.
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#4 |
Junior Member
Join Date: Mar 2007
Location: Hideaway, TX
Posts: 4,950
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Re: Which GM crate engine would you buy?
I am leaning toward the 290hp because 50hp for $300 seems
cheap to me. I do not know of any other mods you can do and get 50hp for $300. Just my 2 cents.
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71 Suburban 350/700R4 Project Trixie 72 CHEVY,Highlander,SWB,396,T400 Last edited by BB72CHEVKT; 09-26-2007 at 01:53 PM. |
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#5 |
Hittin E-Z Street on Mud Tires
![]() Join Date: Nov 2004
Location: Greenville, SC
Posts: 23,090
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Re: Which GM crate engine would you buy?
Fellas, thanks for the comments, but I have no desire to screw with any kind of wiring/efi/etc. Cost is also a BIG factor.
I already have a tired 350 in my truck and that's what I want to replace it with. Unbolt old engine, swap brackets, etc. replace. If I had money to burn, I'd get a turn key motor, but 2K is about my limit. I have no idea how to build a motor, and from what I understand it's just as expensive. My block is aready bored .40 over. Thanks, keep the comments comming. I know a lot of y'all have used one or the other...
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Jesse James 1967 C10 SWB Stepside: 350/700R4/3.73 1965 Ford Mustang: 289/T5-5spd/3.25 Trac-Loc 1968 Pontiac Firebird: Project Fire Chicken! 2015 Silverado Double Cab 5.3L Z71 2001 Jeep Wrangler Sport 4.0L 5spd 2020 Chevrolet Equinox Premium 2.0L Turbo 2011 Mustang V6 ~ Wife's ride ![]() American Born, Country by the Grace of God ![]() 1967 CST Shop Truck Rebuild! My 1967 C-10 Build Thread My Vintage Air A/C Install Project "On a Dime" Trying my hand at Home Renovation! 1965 Mustang Modifications! Last edited by 67ChevyRedneck; 09-26-2007 at 01:55 PM. |
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#6 |
Hittin E-Z Street on Mud Tires
![]() Join Date: Nov 2004
Location: Greenville, SC
Posts: 23,090
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Re: Which GM crate engine would you buy?
I wonder what HP it makes at 4300 rpm? It also has less tq than the first motor, so it should be a little slower off the line but faster in higher rpm range???
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Jesse James 1967 C10 SWB Stepside: 350/700R4/3.73 1965 Ford Mustang: 289/T5-5spd/3.25 Trac-Loc 1968 Pontiac Firebird: Project Fire Chicken! 2015 Silverado Double Cab 5.3L Z71 2001 Jeep Wrangler Sport 4.0L 5spd 2020 Chevrolet Equinox Premium 2.0L Turbo 2011 Mustang V6 ~ Wife's ride ![]() American Born, Country by the Grace of God ![]() 1967 CST Shop Truck Rebuild! My 1967 C-10 Build Thread My Vintage Air A/C Install Project "On a Dime" Trying my hand at Home Renovation! 1965 Mustang Modifications! Last edited by 67ChevyRedneck; 09-26-2007 at 01:57 PM. |
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#7 |
I have a radical idea!
Join Date: Jan 2005
Location: Sweet Home Alabama!
Posts: 6,513
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Re: Which GM crate engine would you buy?
The only difference the camshaft. The engines are identical otherwise.
The 290HP has .450" intake and .460" exhaust lift hydraulic flat tappet which is actually the same cam GM used in 73-81 L82 Corvette engines in the 70's, and the 250HP has a .383 in. intake lift and .401 in. exhaust lift hydraulic flat tappet which pretty much the same camshaft used in stock 327's/350's/400SB's from the late 60's to late 70's. The 250HP is going to be much smoother idling and will be a more economical engine. The camshaft in the 290 has a slighty lopey idle, and won't produce the same low end TQ. I've used the L82 cam before and it does make pretty good power. You won't need an aftermarket stall convertor with it. If you are using your truck as a daily driver, I'd go with 250HP.
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'67 C-30 Dually Pickup 6.2 Turbo Diesel, NP435 ‘72 C-10 SWB , 350 4bbl, TH350 '69 C-10 SWB , 250 L6, 3 OTT '69 GMC C3500, dump truck, 351 V6, NP435 '84 M1009 CUCV Military Blazer 67 C-30 Turbodiesel build thread http://67-72chevytrucks.com/vboard/s...d.php?t=254096 My trucks http://s226.photobucket.com/albums/d...ediafilter=all Member of the 1-Ton Club! Last edited by 67_C-30; 09-26-2007 at 02:11 PM. |
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#8 |
67-72 Addict!
Join Date: Feb 2002
Location: The TAX State!
Posts: 7,857
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Re: Which GM crate engine would you buy?
67 C-30 is right about the different cams being the difference but I would go with the 290 hp myself. That bigger cam is still fairly mild in my opinion.
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Jim 1970 C/10 Fleetside w/Ghost Flames Lowered 4.5" front and 4" rear (Raked) 355/350 Turbo w/shift kit 10" Redneck Performance Verter w/2500 stall Hooker Super Comps part#2808-1 Performer RPM Air-Gap 12 Bolt w/3:73 gears- Eaton Posi Comp Cams XE262 with 1.6 Crane Energizers, Road Demon 625 and Brodix IK 180 heads |
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#9 |
I have a radical idea!
Join Date: Jan 2005
Location: Sweet Home Alabama!
Posts: 6,513
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Re: Which GM crate engine would you buy?
BTW, the 290HP is making around 250HP at 4300 RPM. Here is the dyno chart.
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'67 C-30 Dually Pickup 6.2 Turbo Diesel, NP435 ‘72 C-10 SWB , 350 4bbl, TH350 '69 C-10 SWB , 250 L6, 3 OTT '69 GMC C3500, dump truck, 351 V6, NP435 '84 M1009 CUCV Military Blazer 67 C-30 Turbodiesel build thread http://67-72chevytrucks.com/vboard/s...d.php?t=254096 My trucks http://s226.photobucket.com/albums/d...ediafilter=all Member of the 1-Ton Club! |
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#10 | |
Senior Member
Join Date: Nov 2005
Location: AL
Posts: 2,519
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Re: Which GM crate engine would you buy?
Quote:
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#11 | |
Hittin E-Z Street on Mud Tires
![]() Join Date: Nov 2004
Location: Greenville, SC
Posts: 23,090
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Re: Which GM crate engine would you buy?
Quote:
I definitely don't want to add a new TC to the list too! Will both engines run well on 87?
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Jesse James 1967 C10 SWB Stepside: 350/700R4/3.73 1965 Ford Mustang: 289/T5-5spd/3.25 Trac-Loc 1968 Pontiac Firebird: Project Fire Chicken! 2015 Silverado Double Cab 5.3L Z71 2001 Jeep Wrangler Sport 4.0L 5spd 2020 Chevrolet Equinox Premium 2.0L Turbo 2011 Mustang V6 ~ Wife's ride ![]() American Born, Country by the Grace of God ![]() 1967 CST Shop Truck Rebuild! My 1967 C-10 Build Thread My Vintage Air A/C Install Project "On a Dime" Trying my hand at Home Renovation! 1965 Mustang Modifications! |
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#12 |
Registered User
![]() Join Date: Aug 2005
Location: Philly
Posts: 1,140
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Re: Which GM crate engine would you buy?
Another good bang for the buck to consider would be to go with vortec heads. Not sure if you could fit that into your budget though.
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#13 | |
Hittin E-Z Street on Mud Tires
![]() Join Date: Nov 2004
Location: Greenville, SC
Posts: 23,090
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Re: Which GM crate engine would you buy?
Quote:
No Gen III motor for me either. My Z71 has CSK (along with about 5 million other trucks and vehicles). The only way for it to come in under 2K is a used motor, but isn't the computer crap to make it work crazy expensive? There's also all the stuff outside the motor I'll need to make the swap work, exhaust, probably cats?, electric fans, gas pedal, how will my A/C work, etc??? (Don't get me wrong, I LOVE my Z71, but the CSK is embarassing and I have to clean my throttle body at least every 15K or else the throttle cable sticks, and I also run seafoam through it about twice a year.) Not something I want for the '67. I can't see a 350 only getting 6 mpg unless it was totally set up wrong and abused.
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Jesse James 1967 C10 SWB Stepside: 350/700R4/3.73 1965 Ford Mustang: 289/T5-5spd/3.25 Trac-Loc 1968 Pontiac Firebird: Project Fire Chicken! 2015 Silverado Double Cab 5.3L Z71 2001 Jeep Wrangler Sport 4.0L 5spd 2020 Chevrolet Equinox Premium 2.0L Turbo 2011 Mustang V6 ~ Wife's ride ![]() American Born, Country by the Grace of God ![]() 1967 CST Shop Truck Rebuild! My 1967 C-10 Build Thread My Vintage Air A/C Install Project "On a Dime" Trying my hand at Home Renovation! 1965 Mustang Modifications! Last edited by 67ChevyRedneck; 09-26-2007 at 02:30 PM. |
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#14 |
Registered User
Join Date: Apr 2007
Location: Ashtabula, Ohio
Posts: 105
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Re: Which GM crate engine would you buy?
I would buy the 250 hp motor. My dad and I instaled one in his 56 chevy it ran sweet, great oil pressure and good reliablity. It had plenty of power to turn the tires but it got decent mileage also.
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68 Chevy C-10 custom, 350,4bbl, serp belt swap, th400, 5 lug disk conversion, added honda seats and factory tach. 71 Gremlin X, 360, t-5, 8 3/4 rear, and dodge dakota seats. 82 Spirit, 4.0,ax-15, 8.8 rear and sti bucket seats |
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#15 |
I have a radical idea!
Join Date: Jan 2005
Location: Sweet Home Alabama!
Posts: 6,513
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Re: Which GM crate engine would you buy?
I agree about the 6 mpg, something's up or it has very low gears.
70c10 is correct also, I don't want you to think that the 290HP has a very big cam. Its not a radical cam by any means, and you absolutely WON'T have to have a stall convertor with it. If the truck was something you drive on weekends or every now and then I'd go with it, but with gas $2.50 - $3.00/gal, the 290HP is going to cost you a little more to operate since it has a higher lift/longer duration cam.
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'67 C-30 Dually Pickup 6.2 Turbo Diesel, NP435 ‘72 C-10 SWB , 350 4bbl, TH350 '69 C-10 SWB , 250 L6, 3 OTT '69 GMC C3500, dump truck, 351 V6, NP435 '84 M1009 CUCV Military Blazer 67 C-30 Turbodiesel build thread http://67-72chevytrucks.com/vboard/s...d.php?t=254096 My trucks http://s226.photobucket.com/albums/d...ediafilter=all Member of the 1-Ton Club! Last edited by 67_C-30; 09-26-2007 at 02:33 PM. |
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#16 | |
Hittin E-Z Street on Mud Tires
![]() Join Date: Nov 2004
Location: Greenville, SC
Posts: 23,090
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Re: Which GM crate engine would you buy?
Quote:
Yeah, fuel mileage is a definite concern! I put 50-100 miles per week on the truck. (poor girl sat for almost 2 years, but was started and driven around the yard frequently.) I currently get about 13 city 15-16 highway, I'd love to keep those numbers.
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Jesse James 1967 C10 SWB Stepside: 350/700R4/3.73 1965 Ford Mustang: 289/T5-5spd/3.25 Trac-Loc 1968 Pontiac Firebird: Project Fire Chicken! 2015 Silverado Double Cab 5.3L Z71 2001 Jeep Wrangler Sport 4.0L 5spd 2020 Chevrolet Equinox Premium 2.0L Turbo 2011 Mustang V6 ~ Wife's ride ![]() American Born, Country by the Grace of God ![]() 1967 CST Shop Truck Rebuild! My 1967 C-10 Build Thread My Vintage Air A/C Install Project "On a Dime" Trying my hand at Home Renovation! 1965 Mustang Modifications! |
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#17 |
I have a radical idea!
Join Date: Jan 2005
Location: Sweet Home Alabama!
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Re: Which GM crate engine would you buy?
BTW, $1700 is too high. That engine can be bought from $1400 - $1500 lots of places. One of my buddies bought one from our local Chevy dealer for around $1600. You are going to have freight charges with Summit.
Scoggin Dickey has the same engine that Summit has for less than $1400 plus shipping. http://www.sdparts.com/product/10067...ateEngine.aspx
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'67 C-30 Dually Pickup 6.2 Turbo Diesel, NP435 ‘72 C-10 SWB , 350 4bbl, TH350 '69 C-10 SWB , 250 L6, 3 OTT '69 GMC C3500, dump truck, 351 V6, NP435 '84 M1009 CUCV Military Blazer 67 C-30 Turbodiesel build thread http://67-72chevytrucks.com/vboard/s...d.php?t=254096 My trucks http://s226.photobucket.com/albums/d...ediafilter=all Member of the 1-Ton Club! Last edited by 67_C-30; 09-26-2007 at 02:33 PM. |
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#18 | |
Senior Member
Join Date: Nov 2005
Location: AL
Posts: 2,519
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Re: Which GM crate engine would you buy?
Quote:
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#19 |
Registered User
Join Date: Mar 2005
Location: 10-Uh-See
Posts: 5,609
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Re: Which GM crate engine would you buy?
Redneck, I had the 250hp engine in my 68. It's what's still in there, just with a different cam now. I loved mine. It ran great, had plenty of power, and I could get around 14-17 mpg if I could keep my foot out of it.
![]() If you buy the engine from Summit, you'll only get a 12 month/12,000 mile LIMITED warranty. If you buy from a GM dealer, they will probably honor the 3yr/100,000 mile FULL warranty. Make sure you ask them first. Hope this helps.
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#20 | |
Hittin E-Z Street on Mud Tires
![]() Join Date: Nov 2004
Location: Greenville, SC
Posts: 23,090
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Re: Which GM crate engine would you buy?
Quote:
![]() I don't ever buy anything from Summitt, I just like their catalogs ![]() ![]() ![]()
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Jesse James 1967 C10 SWB Stepside: 350/700R4/3.73 1965 Ford Mustang: 289/T5-5spd/3.25 Trac-Loc 1968 Pontiac Firebird: Project Fire Chicken! 2015 Silverado Double Cab 5.3L Z71 2001 Jeep Wrangler Sport 4.0L 5spd 2020 Chevrolet Equinox Premium 2.0L Turbo 2011 Mustang V6 ~ Wife's ride ![]() American Born, Country by the Grace of God ![]() 1967 CST Shop Truck Rebuild! My 1967 C-10 Build Thread My Vintage Air A/C Install Project "On a Dime" Trying my hand at Home Renovation! 1965 Mustang Modifications! Last edited by 67ChevyRedneck; 09-26-2007 at 02:46 PM. |
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#21 | |
Hittin E-Z Street on Mud Tires
![]() Join Date: Nov 2004
Location: Greenville, SC
Posts: 23,090
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Re: Which GM crate engine would you buy?
Quote:
I have an edelbrock 1406 on mine now. Seems to run well, but I'll keep that in mind. What did you use for an intake? According to GM, the engine has a 3 yr 36K warranty if installed in a 69 to 85? vehicle, but only 1 yr 12K in something else... I'll have to work that out with the dealer?
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Jesse James 1967 C10 SWB Stepside: 350/700R4/3.73 1965 Ford Mustang: 289/T5-5spd/3.25 Trac-Loc 1968 Pontiac Firebird: Project Fire Chicken! 2015 Silverado Double Cab 5.3L Z71 2001 Jeep Wrangler Sport 4.0L 5spd 2020 Chevrolet Equinox Premium 2.0L Turbo 2011 Mustang V6 ~ Wife's ride ![]() American Born, Country by the Grace of God ![]() 1967 CST Shop Truck Rebuild! My 1967 C-10 Build Thread My Vintage Air A/C Install Project "On a Dime" Trying my hand at Home Renovation! 1965 Mustang Modifications! Last edited by 67ChevyRedneck; 09-26-2007 at 02:50 PM. |
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#22 |
Registered User
Join Date: Aug 2007
Location: branson mo
Posts: 933
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Re: Which GM crate engine would you buy?
gm makes a longblock 350 4 bolt main, 290 horse motor for $1440.00 you could use the intake, exhaust, carb and dizzy you already have and it would bee a pretty quick swap, its the motor im running and im more than happy with it. your local gm dealer should have them instock.
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#23 | |
Hittin E-Z Street on Mud Tires
![]() Join Date: Nov 2004
Location: Greenville, SC
Posts: 23,090
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Re: Which GM crate engine would you buy?
Quote:
I wonder why there is such a price difference between dealers? I called about the motors a few years ago and was told around $1600 from a couple dealers? I'm kinda enthused about this already, but it wont be happening until early '08. Gotta get a few other things lined up first, like a house ![]()
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Jesse James 1967 C10 SWB Stepside: 350/700R4/3.73 1965 Ford Mustang: 289/T5-5spd/3.25 Trac-Loc 1968 Pontiac Firebird: Project Fire Chicken! 2015 Silverado Double Cab 5.3L Z71 2001 Jeep Wrangler Sport 4.0L 5spd 2020 Chevrolet Equinox Premium 2.0L Turbo 2011 Mustang V6 ~ Wife's ride ![]() American Born, Country by the Grace of God ![]() 1967 CST Shop Truck Rebuild! My 1967 C-10 Build Thread My Vintage Air A/C Install Project "On a Dime" Trying my hand at Home Renovation! 1965 Mustang Modifications! |
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#24 | |
I have a radical idea!
Join Date: Jan 2005
Location: Sweet Home Alabama!
Posts: 6,513
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Re: Which GM crate engine would you buy?
Quote:
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'67 C-30 Dually Pickup 6.2 Turbo Diesel, NP435 ‘72 C-10 SWB , 350 4bbl, TH350 '69 C-10 SWB , 250 L6, 3 OTT '69 GMC C3500, dump truck, 351 V6, NP435 '84 M1009 CUCV Military Blazer 67 C-30 Turbodiesel build thread http://67-72chevytrucks.com/vboard/s...d.php?t=254096 My trucks http://s226.photobucket.com/albums/d...ediafilter=all Member of the 1-Ton Club! |
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#25 | |
I have a radical idea!
Join Date: Jan 2005
Location: Sweet Home Alabama!
Posts: 6,513
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Re: Which GM crate engine would you buy?
Quote:
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'67 C-30 Dually Pickup 6.2 Turbo Diesel, NP435 ‘72 C-10 SWB , 350 4bbl, TH350 '69 C-10 SWB , 250 L6, 3 OTT '69 GMC C3500, dump truck, 351 V6, NP435 '84 M1009 CUCV Military Blazer 67 C-30 Turbodiesel build thread http://67-72chevytrucks.com/vboard/s...d.php?t=254096 My trucks http://s226.photobucket.com/albums/d...ediafilter=all Member of the 1-Ton Club! |
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