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Author Topic: 1975 Blazer!!!!  (Read 68826 times)

Offline 1980K20

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Re: 1975 Blazer!!!!
« Reply #165 on: February 26, 2022, 09:37:28 PM »
That sounds like a great build! It's pretty much the same as my build and it runs great! I don't know the engine model, but it's a 1991 with roller cam. The cam is a little bit bigger than stock. The vortec heads are not high compression, so I can use regular gas. It dyno at 355hp and 400 lbs-ft. I've got sniper efi. I put a dress up kit on mine.

Early indication is that it's using plenty of gas, too much, but I haven't done a real mpg check yet.

It just feels really nice driving. You'll like your build!

Sent from my SM-G965U using Tapatalk

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1952 International L112 - waiting for EV conversion
1967 Camaro - 250 six cyl, 200-4R
1980 K20 4x4 Fleetside - 350 SBC roller Cam, TH350

Offline VileZambonie

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Re: 1975 Blazer!!!!
« Reply #166 on: February 27, 2022, 09:18:28 AM »
I'm most likely going to run the sniper with the gold throttle body. I already ran all new lines and an in tank pump so all I'll need to do is swap the actual pump and plumb it in under the hood. The cam I used is .480" lift and I'm at 9.5:1 compression.
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74 GMC, 75 K5, 84 GMC, 85 K20, 86 k20, 79 K10

Offline Shifty

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Re: 1975 Blazer!!!!
« Reply #167 on: February 28, 2022, 07:56:27 AM »
Quote from: VileZambonie on February 26, 2022, 05:37:25 PM
Sure but no need and don't believe that aluminum heads are always superior, there would be no benefit or advantages to be had anyway for this build. The Vortec heads are perfect for this and besides, I have plenty of toys with mega tire frying power and this thing will make more than enough to thoroughly enjoy the ride.
OK.... :(
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87 V20 Standard Cab Longbed (current)

87 R30 3+3 Longbed (days of yore)

98 C2500 ext cab longbed

Offline VileZambonie

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Re: 1975 Blazer!!!!
« Reply #168 on: February 28, 2022, 03:39:09 PM »
Hoping I get time tomorrow to get everything buttoned up, with the exception of the intake manifold which is still at the powder coater.
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              ⌠ŻŻŻŻŻ'   [☼===☼]
              `()_);-;()_)--o--)_)

74 GMC, 75 K5, 84 GMC, 85 K20, 86 k20, 79 K10

Offline 1980K20

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Re: 1975 Blazer!!!!
« Reply #169 on: March 01, 2022, 08:01:44 AM »
That looks nice!
How do you keep your shop so neat?

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1952 International L112 - waiting for EV conversion
1967 Camaro - 250 six cyl, 200-4R
1980 K20 4x4 Fleetside - 350 SBC roller Cam, TH350

Offline VileZambonie

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Re: 1975 Blazer!!!!
« Reply #170 on: March 01, 2022, 05:10:19 PM »
I clean  ;D
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74 GMC, 75 K5, 84 GMC, 85 K20, 86 k20, 79 K10

Offline bd

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Re: 1975 Blazer!!!!
« Reply #171 on: March 01, 2022, 07:54:32 PM »
Kudos!!!  A clean, organized shop is a productive shop and a real pleasure, not-to-mention, safe!  It is clear evidence of a professional who exhibits a high standard.  There are fewer distractions.  Equipment is readily accessible.  No time is wasted looking for stuff you know you have.  And abrasives finding their way into fresh assemblies isn't as worrisome.   8)

Did you seal and coat the floors early on when the concrete was new?  Do you recall what you used?
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It's difficult to know just how much you don't know until you know it.
In other words... if people learn by making mistakes, by now I should know just about everything!!!
87 R10 Silverado Fleetside 355 MPFI 700R4 3.42 Locker (aka Rusty, aka Mater)

Offline VileZambonie

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Re: 1975 Blazer!!!!
« Reply #172 on: March 02, 2022, 05:09:28 PM »
That's my shop at work. The floor is epoxy coated with some stuff that I've punished pretty bad and it holds up well. I put nothing on my concrete floor in my shop except for some overspray  8) A wise man once told me, wait at least 10 years before putting anything on your concrete and I'm glad I didn't. My concrete in my garage is awesome, but it is fiber mesh and steel-reinforced on a deep base with inside and outside curtain drains a top of mount ledge. I built my garage like 18 years ago and not one crack which is pretty impressive for New England.

I'll have the engine all done tomorrow. I put the headers back on the shelf and decided to run the manifolds believe it or not. I never thought I'd see the day  ;D am I getting old? lol but I think for this truck, after many beers, this is the way. The valve covers, I'm not sure if I'll keep on there. I had them in stock and popped them on to see if I'd like them, if not, stock VC's will go on there too. Again, not going for bone stock but want to preserve the originality look. The EFI will be tucked under a factory air cleaner and I'm even leaving the factory markings on the firewall. I'm really in love with this Blazer, it has a lot of character. I'll bring the engine to my shop tomorrow and pop the hood off so I can start pecking away. I have a few buddies coming over this weekend, so I don't expect too much progress other than filling up the empties bin.

PS the manifolds are ceracoated along with the insulators and the intake is powdercoated black.
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              ⌠ŻŻŻŻŻ'   [☼===☼]
              `()_);-;()_)--o--)_)

74 GMC, 75 K5, 84 GMC, 85 K20, 86 k20, 79 K10

Offline Shifty

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Re: 1975 Blazer!!!!
« Reply #173 on: March 03, 2022, 08:19:01 AM »
Far out!  8)
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87 V20 Standard Cab Longbed (current)

87 R30 3+3 Longbed (days of yore)

98 C2500 ext cab longbed

Offline VileZambonie

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Re: 1975 Blazer!!!!
« Reply #174 on: March 03, 2022, 04:42:37 PM »
Brought it home today and popped the hood off the Blazer. Time to start the fun
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              ⌠ŻŻŻŻŻ'   [☼===☼]
              `()_);-;()_)--o--)_)

74 GMC, 75 K5, 84 GMC, 85 K20, 86 k20, 79 K10

Offline VileZambonie

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Re: 1975 Blazer!!!!
« Reply #175 on: March 13, 2022, 07:49:17 PM »
Engine is sitting in its new home. I'm waiting for the new radiator and have to fab up the exhaust, then I can fire it up. I still have lots of smalls to do too.
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              ⌠ŻŻŻŻŻ'   [☼===☼]
              `()_);-;()_)--o--)_)

74 GMC, 75 K5, 84 GMC, 85 K20, 86 k20, 79 K10

Offline Shifty

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Re: 1975 Blazer!!!!
« Reply #176 on: March 14, 2022, 09:01:52 AM »
Looking great brother!  8)
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87 V20 Standard Cab Longbed (current)

87 R30 3+3 Longbed (days of yore)

98 C2500 ext cab longbed

Offline JohnnyPopper

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Re: 1975 Blazer!!!!
« Reply #177 on: March 14, 2022, 02:41:44 PM »
Beautiful!

What displacement is the V8?

What Carb are you running VZ? CFM?


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1957 Apache 3100 235 Inline 6, 3 on the tree
1973 C-20, 3+3 454 4BBL TH400  Water Injection
1978 K-10, 350 4BBL TH350 NP203 M.M. Part time Kit/Hubs
1980 C-10 under construction

Offline VileZambonie

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Re: 1975 Blazer!!!!
« Reply #178 on: March 14, 2022, 07:40:35 PM »
Thanks! Put the new radiator in and finished hooking everything up tonight. Even though I don't have the exhaust made yet, I decided to turn the key and it fired right up and sounded really good.  8)

It's a 350, vortec block and heads, roller cam. Carb that's on it right now is a 650 CFM but it's only temporary.
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                         /  _ _ _\_
              ⌠ŻŻŻŻŻ'   [☼===☼]
              `()_);-;()_)--o--)_)

74 GMC, 75 K5, 84 GMC, 85 K20, 86 k20, 79 K10

Offline JohnnyPopper

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Re: 1975 Blazer!!!!
« Reply #179 on: March 15, 2022, 11:11:17 PM »
Thx, I bet it sounded awesome! Great progress!

Is the motor already broken in?

What carb would you recommend for a 383?
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1957 Apache 3100 235 Inline 6, 3 on the tree
1973 C-20, 3+3 454 4BBL TH400  Water Injection
1978 K-10, 350 4BBL TH350 NP203 M.M. Part time Kit/Hubs
1980 C-10 under construction
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