My 54 3100 pickup build - Page 5 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

SPEEDYS GARAGE · 07-11-2015, 08:08 PM

Moving on to the next important job, the manifold. Removing the bunch of bananas and fitting the Holley 300-137 EFI manifold, its operating RPM starts at 2500, for the price nothing else has a lower power starting point.
And as this is a run what ya brung budget build, LOL. I will be adapting the Drive by wire throttle body from the motor, In Australia the Last 5.7 LS1 in our 2004 VZ Monaro got DBW throttle, with its own unique plug. (LS2 got same plug as all 2005 onwards)
Here is the throttle body adapter construction pics... Took a whole day of messing about.
Have to blend the round hole to the 4150 square hole, counter bore the bolts, o-ring the adaptor plate to throttle body surface. The fun never stops.

SPEEDYS GARAGE · 07-11-2015, 08:13 PM

The factory throttle body flows around 750cfm and will suit my street truck needs, not going to bother with a cam change or any other mods except headers and a tune. The adapter plate is 16mm thick, the spacer plate in this picture is for hole placement only.

SPEEDYS GARAGE · 07-11-2015, 08:17 PM

After some redkneck math, I chose a 36deg angle for the cutter, fixed the plate onto my rotary table and started making a mess.

SPEEDYS GARAGE · 07-11-2015, 08:21 PM

Jumping forward a little, It was easier just to had blend the round to square hole, too many multiple angles for a manual mill. . Came out great.

SPEEDYS GARAGE · 07-11-2015, 08:22 PM

Holley manifold in place.

SPEEDYS GARAGE · 07-11-2015, 08:23 PM

Adapter bolted up perfect. O-ring groove is good enough, may look for a fibre 4150 insulator spacer block just to keep the heat away from the throttle body motor and internal electronics

SPEEDYS GARAGE · 07-11-2015, 08:30 PM

Tadah ... Love it when a plan comes together.

SPEEDYS GARAGE · 07-11-2015, 08:33 PM

Thats all for this posting , Motor is sitting in place, will be making mounts for that and the rear transmission. Looks like I will have to chop up some headers to get what I want.

SPEEDYS GARAGE · 07-11-2015, 08:47 PM

Now that the motor and trans are in place for the first time, I can see that it would help to raise an inch and move rearward two inches, so going to make a pocket in the firewall for the right rear valve cover clearance, and chop a larger hole in the cab floor.

**Advanced Design** · 07-11-2015, 10:12 PM

Very nice machine work!

ghettoluxury · 07-11-2015, 10:30 PM

I'm sure glad someone is testing my theory with a factory throttle body on one of the EFI intakes. Are you planning on using a Mass Air sensor? Please let us know how this works out!

iowaboynca · 07-12-2015, 04:45 AM

Quote:

Originally Posted by SPEEDYS GARAGE

Jumping forward a little, It was easier just to had blend the round to square hole, too many multiple angles for a manual mill. . Came out great.

Wow...

SPEEDYS GARAGE · 07-17-2015, 09:19 AM

Here is the chassis to engine mounts. Fabbed out of heavy wall 1.1/2" curved tube. With 5mm plate gusset. Still have one more brace to fit.

SPEEDYS GARAGE · 07-17-2015, 09:23 AM

Rear transmission mount out of same heavy wall 1.1/2" pipe.

SPEEDYS GARAGE · 07-17-2015, 09:46 AM

Underside shot.

SPEEDYS GARAGE · 07-17-2015, 09:48 AM

Motor in place, Headers next.

07-11-2015, 08:08 PM	#101
SPEEDYS GARAGE Registered User Join Date: Jun 2015 Location: Gold Coast, Australia Posts: 100	Re: My 54 3100 pickup build Moving on to the next important job, the manifold. Removing the bunch of bananas and fitting the Holley 300-137 EFI manifold, its operating RPM starts at 2500, for the price nothing else has a lower power starting point. And as this is a run what ya brung budget build, LOL. I will be adapting the Drive by wire throttle body from the motor, In Australia the Last 5.7 LS1 in our 2004 VZ Monaro got DBW throttle, with its own unique plug. (LS2 got same plug as all 2005 onwards) Here is the throttle body adapter construction pics... Took a whole day of messing about. Have to blend the round hole to the 4150 square hole, counter bore the bolts, o-ring the adaptor plate to throttle body surface. The fun never stops. Attached Images __________________ "There are two types of people in this world: those who like Chevy pickups, and those who don't."

07-11-2015, 08:13 PM	#102
SPEEDYS GARAGE Registered User Join Date: Jun 2015 Location: Gold Coast, Australia Posts: 100	Re: My 54 3100 pickup build The factory throttle body flows around 750cfm and will suit my street truck needs, not going to bother with a cam change or any other mods except headers and a tune. The adapter plate is 16mm thick, the spacer plate in this picture is for hole placement only. Attached Images __________________ "There are two types of people in this world: those who like Chevy pickups, and those who don't."

07-11-2015, 08:17 PM	#103
SPEEDYS GARAGE Registered User Join Date: Jun 2015 Location: Gold Coast, Australia Posts: 100	Re: My 54 3100 pickup build After some redkneck math, I chose a 36deg angle for the cutter, fixed the plate onto my rotary table and started making a mess. Attached Images __________________ "There are two types of people in this world: those who like Chevy pickups, and those who don't."

07-11-2015, 08:21 PM	#104
SPEEDYS GARAGE Registered User Join Date: Jun 2015 Location: Gold Coast, Australia Posts: 100	Re: My 54 3100 pickup build Jumping forward a little, It was easier just to had blend the round to square hole, too many multiple angles for a manual mill. . Came out great. Attached Images __________________ "There are two types of people in this world: those who like Chevy pickups, and those who don't."

07-11-2015, 08:22 PM	#105
SPEEDYS GARAGE Registered User Join Date: Jun 2015 Location: Gold Coast, Australia Posts: 100	Re: My 54 3100 pickup build Holley manifold in place. Attached Images __________________ "There are two types of people in this world: those who like Chevy pickups, and those who don't."

07-11-2015, 08:23 PM	#106
SPEEDYS GARAGE Registered User Join Date: Jun 2015 Location: Gold Coast, Australia Posts: 100	Re: My 54 3100 pickup build Adapter bolted up perfect. O-ring groove is good enough, may look for a fibre 4150 insulator spacer block just to keep the heat away from the throttle body motor and internal electronics Attached Images __________________ "There are two types of people in this world: those who like Chevy pickups, and those who don't."

07-11-2015, 08:30 PM	#107
SPEEDYS GARAGE Registered User Join Date: Jun 2015 Location: Gold Coast, Australia Posts: 100	Re: My 54 3100 pickup build Tadah ... Love it when a plan comes together. Attached Images __________________ "There are two types of people in this world: those who like Chevy pickups, and those who don't."

07-11-2015, 08:33 PM	#108
SPEEDYS GARAGE Registered User Join Date: Jun 2015 Location: Gold Coast, Australia Posts: 100	Re: My 54 3100 pickup build Thats all for this posting , Motor is sitting in place, will be making mounts for that and the rear transmission. Looks like I will have to chop up some headers to get what I want. Attached Images __________________ "There are two types of people in this world: those who like Chevy pickups, and those who don't."

07-11-2015, 08:47 PM	#109
SPEEDYS GARAGE Registered User Join Date: Jun 2015 Location: Gold Coast, Australia Posts: 100	Re: My 54 3100 pickup build Now that the motor and trans are in place for the first time, I can see that it would help to raise an inch and move rearward two inches, so going to make a pocket in the firewall for the right rear valve cover clearance, and chop a larger hole in the cab floor. __________________ "There are two types of people in this world: those who like Chevy pickups, and those who don't."

07-11-2015, 10:12 PM	#110
Advanced Design Senior Member Join Date: Jul 2012 Location: Oblong, Illinois Posts: 7,017	Re: My 54 3100 pickup build Very nice machine work! __________________ Doug Advanced Design’s 1977 Blazer Build Advanced Design's '48 'Burb Build Mrs Advanced Design's '72 Suburban Advanced Design's 56 BelAir LS swap

07-11-2015, 10:30 PM	#111
ghettoluxury Registered User Join Date: Apr 2009 Location: Waynesfield Ohio Posts: 1,991	Re: My 54 3100 pickup build I'm sure glad someone is testing my theory with a factory throttle body on one of the EFI intakes. Are you planning on using a Mass Air sensor? Please let us know how this works out! __________________ 1949 Five Window, 1973 Step Side, 2000 Z71

07-17-2015, 09:19 AM	#113
SPEEDYS GARAGE Registered User Join Date: Jun 2015 Location: Gold Coast, Australia Posts: 100	Re: My 54 3100 pickup build Here is the chassis to engine mounts. Fabbed out of heavy wall 1.1/2" curved tube. With 5mm plate gusset. Still have one more brace to fit. Attached Images __________________ "There are two types of people in this world: those who like Chevy pickups, and those who don't."

07-17-2015, 09:23 AM	#114
SPEEDYS GARAGE Registered User Join Date: Jun 2015 Location: Gold Coast, Australia Posts: 100	Re: My 54 3100 pickup build Rear transmission mount out of same heavy wall 1.1/2" pipe. Attached Images __________________ "There are two types of people in this world: those who like Chevy pickups, and those who don't."

07-17-2015, 09:46 AM	#115
SPEEDYS GARAGE Registered User Join Date: Jun 2015 Location: Gold Coast, Australia Posts: 100	Re: My 54 3100 pickup build Underside shot. Attached Images __________________ "There are two types of people in this world: those who like Chevy pickups, and those who don't."

07-17-2015, 09:48 AM	#116
SPEEDYS GARAGE Registered User Join Date: Jun 2015 Location: Gold Coast, Australia Posts: 100	Re: My 54 3100 pickup build Motor in place, Headers next. Attached Images __________________ "There are two types of people in this world: those who like Chevy pickups, and those who don't."



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