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#1 |
Registered User
Join Date: Nov 2013
Location: Norris Arm NL
Posts: 126
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Hi guys, I'd like you to check out the link I have posted below. I probably never will purchase another motor for my old 1975 C20, but I would certainly love to. One of the best replacements I've come across so far is straight from Chevy, and for a good price.
It's a 350 with 290 HP. All the Dyno specs are listed, and it seems to be a really good motor. My question, is will it fit our trucks without any major modifications? Specifically a 1975 C20 with a stock 350? You can view the motor at THIS LINK--> http://www.chevrolet.com/performance...-hp.html#parts
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If It runs like a Chevy, it probably is! |
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#2 |
Registered User
Join Date: Nov 2013
Location: Norris Arm NL
Posts: 126
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Re: Chevy High Performance 350- Fit or no fit?
![]() Quite an attractive motor if you ask me... ![]()
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If It runs like a Chevy, it probably is! |
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#3 |
Registered User
Join Date: Feb 2013
Location: Cary, NC
Posts: 816
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Re: Chevy High Performance 350- Fit or no fit?
Yea it is. So much better than ls motors imo...
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Austin 1996 Chevrolet K1500 Silverado ![]() 1979 Chevrolet K10 Scottsdale - Carolina K10 - My 4.8L Twin turbo build - Project Short Stroke - Instagram - TheBlueBomber1996 |
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#4 |
Registered User
Join Date: Mar 2008
Location: red deer alberta
Posts: 777
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Re: Chevy High Performance 350- Fit or no fit?
We have put several in pre 86 pickups...drops right in.
It is the same motor as the base 260hp goodwrench/targetmaster but with the L82 cam and valve springs Works well and sounds nice with duals And is GM warranteed! |
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#5 |
Registered User
Join Date: Dec 2011
Location: Arlington WA
Posts: 1,728
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Re: Chevy High Performance 350- Fit or no fit?
hmmmmm, "forget the rebuild". you could build a more powerful 350 for less that half cost. and not have 8:1 CR
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GMC C15 355 SM465 3.73 80 C10 cruiser build thread 79 short stepside crew cab. big and ugly. build thread |
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#6 |
Registered User
Join Date: Aug 2005
Location: Louisiana
Posts: 711
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Re: Chevy High Performance 350- Fit or no fit?
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#7 |
Senior Member
![]() Join Date: Jun 2010
Location: Illinois
Posts: 2,957
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Re: Chevy High Performance 350- Fit or no fit?
If you are going to buy an engine then I would check out Summitracing.com. Not sure what the price is that you were quoted from Chevy but if it is what is listed on your link then Summit can beat that price.
Save $400 http://www.summitracing.com/parts/na...make/chevrolet
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Roy 85 Short Bed Silverado- Work in progress. http://67-72chevytrucks.com/vboard/s...d.php?t=564818 1987 R10 shortie |
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#8 |
Registered User
Join Date: Feb 2013
Location: Cary, NC
Posts: 816
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Re: Chevy High Performance 350- Fit or no fit?
I didn't look at the price before. 3k and you could build it yourself and get more power. Just wouldn't have a warranty.
__________________
Austin 1996 Chevrolet K1500 Silverado ![]() 1979 Chevrolet K10 Scottsdale - Carolina K10 - My 4.8L Twin turbo build - Project Short Stroke - Instagram - TheBlueBomber1996 |
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#9 |
Registered User
Join Date: Mar 2008
Location: red deer alberta
Posts: 777
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Re: Chevy High Performance 350- Fit or no fit?
In a street truck with todays fuel the 8:1 compression makes for a reliable engine;We have used both the 290hp and 260hp versions;for the price difference I prefer the 290hp...especially in a short box sport truck.And it sounds better.Hard to beat the 2 year GM backed warrantee and ALL brand new parts.
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#10 | |
Senior Member
![]() Join Date: Jul 2000
Location: North Texas
Posts: 3,488
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Re: Chevy High Performance 350- Fit or no fit?
Quote:
I don't know what GMPP was thinking, unless they wanted a lopey idle (misfires) and didn't care about loss of torque. At least they could have selected a cam with a tighter LSA, or cylinder heads with smaller combustion chambers. I think CompCam's #12-306-4 at 206/212 on a 108 LSA would work much better than the larger GM cam. You can also get it on a 110 LSA as #12-308-4. On another note, I have had a couple 9.0:1 to 9.3:1 engines with iron heads, Neither one needed premium gas except on very hot days with coolant temp at 200-210. Of course, quench height on both was in the .040"-.045" range. On the GM crate engines it's .060"-.070", which is more prone to detonation.
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Mike 1969 C10 LWB -- owned for 35 years. 350/TH350, 3.08 posi, 1st Gen Vintage Air, AAW wiring harness, 5-lug conversion, 1985 spindles and brakes. 1982 C10 SWB -- sold 1981 C10 Silverado LWB -- sold, but wish I still had it! 1969 C10 (not the current one) that I bought in the early 1980s. Paid $1200; sold for $1500 a few years later. Just a hint at the appreciation that was coming. Retired as a factory automation products salesman. Worked part-time over the years for an engine builder and a classic car repair shop. Member here for 24 years! This is the very first car/truck Internet forum I joined. I still used a dial-up modem back then! Last edited by MikeB; 02-12-2014 at 12:59 PM. |
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350, chevy motor, dyno, replacement motor |
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