Just built a new motor for my 69 c10 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Sawlog · 12-17-2018, 11:41 PM

I was on the fence, to buy or to build. So glad I built.
350 bored .040 over.
Summit vortec style heads, which are dart iron eagles.
Zero deck with 9.9 compression.
221-221 @.50 duration. .470 .470 lift
Perfprer intake and headers.
I had it broke in on a dyno.
333 to at 5200 rpm, 388 ft pounds of tourqe at 3700 rpm.
It was a great experience, that dyno puts a beat down on a motor!! Everything went great.
My 7 year old son and I built the motor together and my dad was with me on the dyno day.
My son and I swapped motors last weekend and went for the first ride together.
It is cheaper to buy, but I wouldn't change the way we went.

**Captainfab** · 12-18-2018, 12:22 AM

Yes there is something to be said about the satisfaction of building an engine, firing it up and having everything work well. Those are some respectable power numbers too.

Warrens69GMC · 12-18-2018, 12:49 AM

enjoy!! cam info like part number....

weq92f · 12-18-2018, 01:15 AM

.
Flip fa ya...

Sawlog · 12-18-2018, 08:17 AM

Howards cam. Hydro flat tapped. Cl 110991-08. .221-.221@.50 .470-.470 lift. Lsa 108

Warrens69GMC · 12-18-2018, 09:24 AM

Thank you, looks to be decent for your setup.

68Gold/white · 12-18-2018, 09:59 AM

What carb???

Sawlog · 12-18-2018, 11:34 AM

Quote:

Originally Posted by 68Gold/white

What carb???

750 holley

**tdangle** · 12-18-2018, 08:49 PM

I would love to see a graph of your dyno pull. Most interested in the Torque graph.

Sawlog · 12-18-2018, 08:55 PM

Quote:

Originally Posted by tdangle

I would love to see a graph of your dyno pull. Most interested in the Torque graph.

Here is the print put.

weq92f · 12-18-2018, 09:34 PM

.
Flip fa ya...

Mike C · 12-18-2018, 10:43 PM

So rewarding to do it yourself and even better that your son and dad were involved!

Looks like a great motor for a truck with 300+ foot pounds at 2000 rpm it seems and from 4200-5200 over 300 hp.

I bet the truck runs great and is a hoot to drive!

**tdangle** · 12-19-2018, 01:12 AM

That's exactly what I was interested in. A strong flat torque curve starting at 2K. Should make the truck run great.

Sawlog · 12-19-2018, 07:50 AM

Quote:

Originally Posted by tdangle

That's exactly what I was interested in. A strong flat torque curve starting at 2K. Should make the truck run great.

Truck does run really good, I put a 2000 stall in it too. The cam specs say 1700-5700 rpm.
It took me awhile to pick out a cam, I'm happy with it.

Mike C · 12-19-2018, 09:09 PM

Who makes the cam? We put the Performer 204/214 @ .050 and an 1800 rpm converter in my kids Jimmy project. Performer intake, JET Q-jet and some 2 1/2" 'vette rams horns. Hope the curve looks like yours even if the peaks aren't as high!

Sawlog · 12-19-2018, 09:16 PM

Quote:

Originally Posted by Mike C

Who makes the cam? We put the Performer 204/214 @ .050 and an 1800 rpm converter in my kids Jimmy project. Performer intake, JET Q-jet and some 2 1/2" 'vette rams horns. Hope the curve looks like yours even if the peaks aren't as high!

Howard cam

Mike C · 12-19-2018, 09:52 PM

Cool. Tnx.

GASoline71 · 01-02-2019, 04:22 PM

Curious about the "Iron Eagle" Summit Vortec heads made by Dart.

Gary

Sawlog · 01-02-2019, 05:10 PM

Quote:

Originally Posted by GASoline71

Curious about the "Iron Eagle" Summit Vortec heads made by Dart.

Gary

What about them?

Sawlog · 01-02-2019, 05:38 PM

They are vortec style heads. It's the same as the 165cc dart heads but with the vortec intake bolt pattern. They are 170cc heads because they took a little out on the top of the intake runner.
Summit sells the summit brand dart 165cc head with 72cc chamber and the summit vortec style heads with 67cc chamber. I just went with the vortec because I wanted more compression.
They are made by dart, I called dart and talked to the about it. Also, I looked up the numbers on the summit heads and it took to to darts website. If you look at them on summits page and click on repair parts, they are all dart parts.

GASoline71 · 01-03-2019, 04:48 PM

Sweet! That's the info I was looking for. Seem like a good set of heads. I'm gonna be in the market for heads in the next year and am comparing a bunch of different heads.

Gary

garyd1961 · 01-06-2019, 08:35 PM

I think you have yourself a great motor there, the dyno numbers are perfect for these old trucks. I prefer a roller cam but that's no biggie as long as you use the right oil and keep it changed.
To me 300-350 hp with a lot of low end torque is perfect for these heavy trucks. It makes them really fun to drive but not over bearing where you are always on edge.

12-17-2018, 11:41 PM	#1
Sawlog Registered User Join Date: Jun 2017 Location: Central illinois Posts: 143	Just built a new motor for my 69 c10 I was on the fence, to buy or to build. So glad I built. 350 bored .040 over. Summit vortec style heads, which are dart iron eagles. Zero deck with 9.9 compression. 221-221 @.50 duration. .470 .470 lift Perfprer intake and headers. I had it broke in on a dyno. 333 to at 5200 rpm, 388 ft pounds of tourqe at 3700 rpm. It was a great experience, that dyno puts a beat down on a motor!! Everything went great. My 7 year old son and I built the motor together and my dad was with me on the dyno day. My son and I swapped motors last weekend and went for the first ride together. It is cheaper to buy, but I wouldn't change the way we went. Attached Images

12-18-2018, 12:22 AM	#2
Captainfab 60-66 Nut Join Date: Mar 2007 Location: Coeur d'Alene, Idaho Posts: 23,246	Re: Just built a new motor for my 69 c10 Yes there is something to be said about the satisfaction of building an engine, firing it up and having everything work well. Those are some respectable power numbers too. __________________ Power Steering Box Adapter Plates For Sale HERE Power Brake Booster Adapter Brackets For Sale '63-'66 HERE and '67-'72 HERE and '60-'62 HERE and "60-'62 with clutch HERE Rear Disc Brake Brackets For Sale. Impala SS calipers HERE Camaro Calipers HERE D52 Calipers HERE 6 Lug HERE Hydroboost Mounting Plates HERE

12-18-2018, 12:49 AM	#3
Warrens69GMC Registered User Join Date: Jan 2003 Location: Safford,AZ Posts: 3,613	Re: Just built a new motor for my 69 c10 enjoy!! cam info like part number....

12-18-2018, 01:15 AM	#4
weq92f Registered User Join Date: Oct 2016 Location: Dallas Texas Posts: 2,860	Re: Just built a new motor for my 69 c10 . Flip fa ya... Attached Images __________________ 67 C10 fleet fuel injected '70 402, 700r4, 3.73 posi 07 335 sport turbo 6sp 94 Trans Am GT LT1 6sp posi -- sold after 22yrs 99 540 sport V8 6sp -- sold 73 240z L24 4sp -- given to friend 68 C10 step 350/350 3.73 open -- sold

12-18-2018, 08:17 AM	#5
Sawlog Registered User Join Date: Jun 2017 Location: Central illinois Posts: 143	Re: Just built a new motor for my 69 c10 Howards cam. Hydro flat tapped. Cl 110991-08. .221-.221@.50 .470-.470 lift. Lsa 108

12-18-2018, 09:24 AM	#6
Warrens69GMC Registered User Join Date: Jan 2003 Location: Safford,AZ Posts: 3,613	Re: Just built a new motor for my 69 c10 Thank you, looks to be decent for your setup.

12-18-2018, 09:59 AM	#7
68Gold/white Registered User Join Date: Sep 2011 Location: Ark City, Kansas Posts: 3,271	Re: Just built a new motor for my 69 c10 What carb???

12-18-2018, 08:49 PM	#9
tdangle Senior Member Join Date: Mar 2005 Location: Jurupa Valley, Ca Posts: 1,208	Re: Just built a new motor for my 69 c10 I would love to see a graph of your dyno pull. Most interested in the Torque graph. __________________ Terry 1970 Custom Camper/C20 , GM Crate 350/7004R, Dana 60, factory AC

12-18-2018, 09:34 PM	#11
weq92f Registered User Join Date: Oct 2016 Location: Dallas Texas Posts: 2,860	Re: Just built a new motor for my 69 c10 . Flip fa ya... Attached Images __________________ 67 C10 fleet fuel injected '70 402, 700r4, 3.73 posi 07 335 sport turbo 6sp 94 Trans Am GT LT1 6sp posi -- sold after 22yrs 99 540 sport V8 6sp -- sold 73 240z L24 4sp -- given to friend 68 C10 step 350/350 3.73 open -- sold

12-18-2018, 10:43 PM	#12
Mike C Registered User Join Date: Dec 1999 Location: Austin, TX, USA Posts: 7,709	Re: Just built a new motor for my 69 c10 So rewarding to do it yourself and even better that your son and dad were involved! Looks like a great motor for a truck with 300+ foot pounds at 2000 rpm it seems and from 4200-5200 over 300 hp. I bet the truck runs great and is a hoot to drive! __________________ 44 Willys MB 52 M38A1 64 Corvette Coupe 68 Camaro 'vert LT1 & TH700 69 Z/28 355 12.6's @110 69 Chevy Short Step 4 1/2"/7" drop 72 Jimmy 4WD 4spd 4" & 35's 02 GMC 2500HD 4x4 Duramax

12-19-2018, 01:12 AM	#13
tdangle Senior Member Join Date: Mar 2005 Location: Jurupa Valley, Ca Posts: 1,208	Re: Just built a new motor for my 69 c10 That's exactly what I was interested in. A strong flat torque curve starting at 2K. Should make the truck run great. __________________ Terry 1970 Custom Camper/C20 , GM Crate 350/7004R, Dana 60, factory AC

12-19-2018, 09:09 PM	#15
Mike C Registered User Join Date: Dec 1999 Location: Austin, TX, USA Posts: 7,709	Re: Just built a new motor for my 69 c10 Who makes the cam? We put the Performer 204/214 @ .050 and an 1800 rpm converter in my kids Jimmy project. Performer intake, JET Q-jet and some 2 1/2" 'vette rams horns. Hope the curve looks like yours even if the peaks aren't as high! __________________ 44 Willys MB 52 M38A1 64 Corvette Coupe 68 Camaro 'vert LT1 & TH700 69 Z/28 355 12.6's @110 69 Chevy Short Step 4 1/2"/7" drop 72 Jimmy 4WD 4spd 4" & 35's 02 GMC 2500HD 4x4 Duramax

12-19-2018, 09:52 PM	#17
Mike C Registered User Join Date: Dec 1999 Location: Austin, TX, USA Posts: 7,709	Re: Just built a new motor for my 69 c10 Cool. Tnx. __________________ 44 Willys MB 52 M38A1 64 Corvette Coupe 68 Camaro 'vert LT1 & TH700 69 Z/28 355 12.6's @110 69 Chevy Short Step 4 1/2"/7" drop 72 Jimmy 4WD 4spd 4" & 35's 02 GMC 2500HD 4x4 Duramax

01-02-2019, 05:38 PM	#20
Sawlog Registered User Join Date: Jun 2017 Location: Central illinois Posts: 143	Re: Just built a new motor for my 69 c10 They are vortec style heads. It's the same as the 165cc dart heads but with the vortec intake bolt pattern. They are 170cc heads because they took a little out on the top of the intake runner. Summit sells the summit brand dart 165cc head with 72cc chamber and the summit vortec style heads with 67cc chamber. I just went with the vortec because I wanted more compression. They are made by dart, I called dart and talked to the about it. Also, I looked up the numbers on the summit heads and it took to to darts website. If you look at them on summits page and click on repair parts, they are all dart parts.

01-06-2019, 08:35 PM	#22
garyd1961 Registered User Join Date: May 2016 Location: Henderson NC Posts: 975	Re: Just built a new motor for my 69 c10 I think you have yourself a great motor there, the dyno numbers are perfect for these old trucks. I prefer a roller cam but that's no biggie as long as you use the right oil and keep it changed. To me 300-350 hp with a lot of low end torque is perfect for these heavy trucks. It makes them really fun to drive but not over bearing where you are always on edge. Last edited by garyd1961; 01-06-2019 at 08:46 PM.



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