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#1 |
Registered User
Join Date: Jan 2014
Location: Tulsa, OK
Posts: 360
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260hp Crate Engine Advice
I received my crate engine yesterday. I also have a Lunati 262 cam that I ordered when I was going to rebuild my motor (before ordering the crate). Those that have this engine in their truck and have experienced the performance, would you recommend any mods prior to installation or are you perfectly happy with it as it came? I would like to perform any mods prior to installation while it's easy to do.
Thanks in advance.
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-Jason USN Retired |
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#2 |
Registered User
Join Date: Jan 2013
Location: San Antonio, TX
Posts: 733
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Re: 260hp Crate Engine Advice
subscribed
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Figure out what you want--then figure out what you are willing to give up to get it. |
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#3 |
Registered User
![]() Join Date: Dec 2013
Location: Norwood, Colorado
Posts: 83
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Re: 260hp Crate Engine Advice
That motor is only 260 with the right carb,intake, dizzy and exhaust. 195 in stock trim. What are your plans for those parts?
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#4 |
Registered User
Join Date: Jan 2014
Location: Tulsa, OK
Posts: 360
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Re: 260hp Crate Engine Advice
I have an Eddie 600cfm performer carb, Performer RPM intake, flowtech headers, and an Accel HEI distributor.
I was thinking about taking the 492 heads off my current motor and having them rebuilt so I could install them on the new crate engine. This would bump up the compression and should be an improvement in flow. The cam I bought cam with all new springs, retainers, and lifters plus a double roller timing set. Basically I am trying to decide if I should just use the engine as is, install a cam only, or do what I mentioned above.
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-Jason USN Retired |
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#5 |
Senior Member
![]() Join Date: Mar 2012
Location: Chesapeake, Va
Posts: 1,275
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Re: 260hp Crate Engine Advice
i agree that engine is a little on the light side, but if you do any mods to the top you will lose your warranty , so no protection even for the bottom end
i would run as is for now, get the bottom end broke in good and after you feel comfortable about the engine then i would beef up the top end
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Mike 72 C-10 Cheyenne off frame resto and Upgraded to 4 wheel disk, Tilt, Dakota Digital Dash / Rear slider. 421 SBC / TH350 3000RPM Stall Progression Ignition /Holley 750 DP/3:73 gear Eaton Limited Slip unit / 2 1/2 exhaust glasspacks ![]() |
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#6 | |
Registered User
Join Date: Jan 2014
Location: Tulsa, OK
Posts: 360
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Re: 260hp Crate Engine Advice
Quote:
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-Jason USN Retired |
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#7 |
Senior Member
Join Date: Jan 2003
Location: daytonabeach
Posts: 22,956
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Re: 260hp Crate Engine Advice
void your warrenty right out of the box b4 takin a test drive is very very smart
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71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY |
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#8 |
Registered User
Join Date: Jul 2011
Location: oklahoma city
Posts: 692
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Re: 260hp Crate Engine Advice
I'm a huge cam swap fan, but bigmac makes a good point about the warranty. I would do like he said and break it in first and be itching to be ready to put that cam in. Plus, a cam swap while the engine is installed isn't much hassle for the gains you get. Good luck!
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Daniel 68 C10 Build http://67-72chevytrucks.com/vboard/s...d.php?t=503594 Romans 10:13 Everyone who calls on the name of the Lord will be saved. |
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#9 |
Junior Member
Join Date: Mar 2007
Location: Hideaway, TX
Posts: 4,950
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Re: 260hp Crate Engine Advice
If you install the motor yourself I do not think the 3yr 100k miles warranty applies anyway. I could be wrong but that is what I remember reading somewhere that it had the be installed by an approved shop.
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71 Suburban 350/700R4 Project Trixie 72 CHEVY,Highlander,SWB,396,T400 |
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#10 |
Senior Member
Join Date: Jan 2003
Location: daytonabeach
Posts: 22,956
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Re: 260hp Crate Engine Advice
not true
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71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY |
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#11 |
Registered User
Join Date: Jan 2014
Location: Tulsa, OK
Posts: 360
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Re: 260hp Crate Engine Advice
Our trucks are beyond the years that receive the full warranty. These motors are covered for 12 months / 12k miles regardless of who installs them, per GM.
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-Jason USN Retired |
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#12 |
Junior Member
Join Date: Mar 2007
Location: Hideaway, TX
Posts: 4,950
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Re: 260hp Crate Engine Advice
Would you mind sharing the dimensions of the crate?
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71 Suburban 350/700R4 Project Trixie 72 CHEVY,Highlander,SWB,396,T400 |
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#13 |
Registered User
Join Date: Apr 2011
Location: Las Vegas, NV
Posts: 264
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Re: 260hp Crate Engine Advice
I agree with breaking it in stock then turning her up. Even though gm builds those crates all.day long, a goose egg gets out once and a while im sure. Last thing you wanna do is tear apart a fresh motor with a warranty only to have it spin a bearing or something because someone was having a bad day while assembling your bottom end. Then you are stuck with junk parts and no motor.
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1971 C10 - LWB shortened to SWB, welded in my C notch, reinforced trailing arms with 3/16 plate, new cpp 5" rear drop springs, 2" drop blocks, ece super panhard kit. Cpp drop spindles, 2 inch front springs, 5.3/4L80E I call it Bruce Banner.. |
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#14 |
Registered User
Join Date: Oct 2005
Location: Overland Park, Ks.
Posts: 5,217
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Re: 260hp Crate Engine Advice
The glory of these Goodwrench engines is the reliability of them. It is factory assembled. Put in correctly they will run for years & thousands of miles without any concern. I have put in many of them & they run good with no problems. I have one in my 56 1/2 ton now with 3 carbs. It has plenty of power & idles so smooth you can't even tell its running. Unless you are going raceing I can't see any reason to modify it. Lets face it. When you have someone else work on it you are not sure how it will turn out.
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#15 |
Registered User
Join Date: May 2011
Location: Oakley, Michigan
Posts: 735
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Re: 260hp Crate Engine Advice
why not just sell the crate motor if a built motor is what you really want? Seems like a rebuild would be about the same cost as a crate motor if you already have all the other parts anyhow. Or just put in the crate and be done. Might not have the sound and power that you are looking for, but with the right rear gear, that's still plenty of power for must needs. I'd do one or the other, but not run the crate, then tear it apart later.... just my 2 cents, since you asked.
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#16 |
Junior Member
Join Date: Mar 2007
Location: Hideaway, TX
Posts: 4,950
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Re: 260hp Crate Engine Advice
I have this motor in my burb which is a big vehile and drive it daily. I would like a little more power but it still is gets of the line pretty good with the 3.73 and 700r4. I am considering replacing it with a new one.
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71 Suburban 350/700R4 Project Trixie 72 CHEVY,Highlander,SWB,396,T400 |
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#17 |
Registered User
Join Date: Jan 2014
Location: Tulsa, OK
Posts: 360
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Re: 260hp Crate Engine Advice
Thanks. That was what I was looking for.
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-Jason USN Retired |
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#18 |
I have a radical idea!
Join Date: Jan 2005
Location: Sweet Home Alabama!
Posts: 6,513
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Re: 260hp Crate Engine Advice
I've added heads and cams to a couple of these engines for people over the years. I've done it after they have been broken in and done it when they were brand new. The shortblock is adequate for a pretty stout engine, but the heads are junk for performance. The Nova below ran 12.30's @ 110 with stock 260HP crate bottom end and with a set of Edelbrock Performer RPM heads, RPM heads, and a Comp XE284 hyd cam. The Nova ran 15.20's with the engine stock. The only he did to car was change the 2400 Holeshot converter to a 3000 Holeshot and went from a 600 Edelbrock to a Holley 650 DP.
The other one I did got a set of Vortecs and a Comp XE268. It went into a '84 Camaro with a 700R4 trans. Both were night and day different in how they ran.
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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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#19 |
Registered User
Join Date: Jan 2014
Location: Billings Montana
Posts: 183
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Re: 260hp Crate Engine Advice
My question is why don't you guys just buy the short block?
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#20 |
Registered User
Join Date: Jan 2014
Location: Tulsa, OK
Posts: 360
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Re: 260hp Crate Engine Advice
Everywhere I looked at short blocks they actually cost more than the long block.
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-Jason USN Retired |
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#21 |
I have a radical idea!
Join Date: Jan 2005
Location: Sweet Home Alabama!
Posts: 6,513
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Re: 260hp Crate Engine Advice
I didn't buy either of these engines, and frankly I wouldn't. I can build a much stronger engine for the same money or less. Other people bought them and I modified them for the owners. A lot of people that buy those engines end up being disappointed in the power with them. That 260 gross HP is actually only around 180 net HP, which is the standard that engines have been rated since 1972. IOW, what I'm saying is if that one these engines was installed by the factory in 2104 Silverado it would rated at 180 HP. That means that it makes roughly the same HP as a typical modern 4 cylinder, but it does make decent torque.
With that said, they have their place. They have adequate for most people and are reliable. If I guys doesn't have the tools or ability to build his own engines, they are a great option for decent money.
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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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#22 |
Registered User
Join Date: Jan 2014
Location: Billings Montana
Posts: 183
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Re: 260hp Crate Engine Advice
$639 for crank, rods, flat top pistons, junk cam, in the block with oil pan and timing cover at the dealer here
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#23 | |
RAT1968 '68 Cab/'71 Parts
Join Date: Feb 2002
Location: Coarsegold, CA
Posts: 2,375
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Re: 260hp Crate Engine Advice
Quote:
I'll assume flat tappet and two-bolt mains. I wonder what machining a shortie like that would have had? Would a buyer know? If all the parts are 'GM new', including the block, that would be a steal.
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M17 Coarsegold, CA RAT's shiny now. But always a rat. |
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