My very own build thread!! 434CID Mamo top end
#1
My very own build thread!! 434CID Mamo top end
I have decided to get a motor for my 99 Trans Am, instead of buying a different car. I couldn't find anything that I really wanted that wouldn't make me live paycheck to paycheck, and my wife told me that she didn’t think that I would be as happy as I would be if I just got the motor for the TA. So... for the first time in the 17 yrs that I have been on LS1Tech.... I get to do a build thread!! You have no idea how excited I am!!!
This will be a daily driver. I will drive this car to work every day that I am in town, most of that is stop light to stop light. 90% of the time the car will be under 4500 RPMs. I might go to the drag strip a couple of times per year, and that is the only time that the motor will see 7K.
The set up will be using Flex-Fuel (E54) and a Flex-Fuel sensor to knock timing down when I am forced to run 91 octane.
Race Engine Development will be machining the block, installing Darton sleeves, and installing billet main caps.
Katech will be installing their piston oil squirters.
Mamo Motorsports top end and recommended rotating assembly parts.
Probably going to install the motor myself, with the help of a friend that has done a few of these. Hopefully we can knock out the roll-bar and mini-tub at the same time.
BLOCK
Block – 12571048 - IN PROCESS AT Katech.
R.E.D sleeving, prepping, tapping for LS1 knock sensors, and installing Billet Speedworks main caps - DONE
Katech Piston Squirters - IN PROCESS
ROTATING ASSEMBLY
Pistons – Wiseco semi-custom - RECEIVED (might have to change these due to Katech piston oil squirters)
Piston Rings – included with pistons - RECEIVED
Wrist Pin – included with pistons - RECEIVED
Connecting Rods – 6.125” Molnar PWR ADR - RECEIVED
Rod bolts – Molnar spec ARP 2000 included with rods
Rod bearings – Clevite or King
Crankshaft and main bolts – Molnar 4” stroke - RECEIVED
Main bearings – Clevite or King
HEADS/CAM/INTAKE
MMS 265 LS7 heads - RECEIVED
Yella Terra Rockers - RECEIVED
YT valve cover gasket - RECEIVED
MMS MSD Intake - RECEIVED
Valve cover bolts - ORDERED FROM SUMMIT
Valve covers –
Intake manifold bolts – ARP - RECEIVED
Pushrods – Manton length based on engine assembly - ORDERED FROM MAMO MOTORSPORTS. Will be shipped after measurements during the engine build)
Lifters – link bar - axle oiling - RECEIVED
Head bolts – ARP - RECEIVED
head gaskets – ORDERED FROM MAMO MOTORSPORTS. (Will be shipped after measurements during engine build)
Crank Damper – ATI Aluminum shell, steel hub - RECEIVED
Cam – 237 / 249 116 + 4 - RECEIVED
Cam bolt – ARP - RECEIVED
ENGINE ASSEMBLY
Valley Cover and bolts – GM LS3 - RECEIVED
Crank sensor – LS1 - RECEIVED
Engine Coolant Sensor – LS1 - RECEIVED
Oil Pressure Sender – LS1 - RECEIVED
Cam bearings – Dura Bond
Block plugs – ICT Billet
LS coolant crossover - Improved Racing
Crank Scraper/windage tray – Improved Racing - RECEIVED
Oil Pump – MMS Ported LSA - RECEIVED
Oil pan bolts - ORDERED FROM SUMMIT
Oil pan – Holley - RECEIVED
Oil dip stick – F-Body - RECEIVED
Oil dip stick tube – F-Body - RECEIVED
Oil pickup tube – F-Body - RECEIVED
Rear cover bolts – ARP - RECEIVED
Crank bolt – ARP - RECEIVED
Timing kit – CLOYES Z Series - RECEIVED
Timing Cover - RECEIVED
Cam Sensor - RECEIVED
Timing Cover gasket - RECEIVED
Timing cover bolts - ORDERED FROM SUMMIT
Mechman 250 Altalternator
Oil cooler with fan - Improved Racing Setrab 20 row Series 9 with dual fans, 180 degree thermostat, and 200 degree temp switch for the fans - RECEIVED
Radiator - Dewitts 32-1139027M - probably ordering from Summit
Yella Terra valve cover gaskets - RECEIVED
ENGINE INSTALLATION
Motor mount bolts – ARP - RECEIVED
knock sensors – LS1 - RECEIVED
Knock Sensor/Cam sensor adaptor wire - ORDERED FROM SUMMIT
MAP Sensor – Stock LS1 - RECEIVED
MAP Sensor extension - will be part of custom wire harness
Kooks 2” primary LS1 headers - Oval Flange - RECEIVED
Zycoat coating on the headers - RECEIVED
Kooks 3” over the axle system with cats. - RECEIVED
Header Gasket - PART OF HEADER FROM KOOKS
Header bolts – Stage8 - RECEIVED
UMI K-Member - RECEIVED
UMI panhard bar relocation kit - RECEIVED
Remanufactured 411 ECM
New, customized, ECM wiring harness (EV6 injector plugs, Gen IV coil plugs, LS7 MAF plug, longer MAP sensor cable, longer Cam Position Sensor cable) - Current Performance Wiring
FUEL SYSTEM
CHRS1313 dual Walbro 450 - no switch - -8AN feed/return stock evap - RECEIVED
Holley 12-846 Fuel regulator - RECEIVED
MagnaFuel 7010 25 micron stainless filter - RECEIVED
Tony's recommended injectors - RECEIVED
Racetronix PTFE kevlar hose, -8 feed and return. -6 from regulator to fuel rail.
PTFE fittings - -6 to EFI, -6 male, -8 male, and -8 male angled. Probably ordering from Summit.
Derale 15800 Fuel cooler -8 AN. Probably ordering from Summit.
DRIVETRAIN
Clutch - Summit SUM-700901 - RECEIVED
I already have a TDP stage 3 Viper T56
I already have a Dana 60 with 4.10s
Wheels - OE Wheels Corvette Wheel C7 ZR1 18 front, 19 back. Both 56mm offset
Wheel shortening/widening: Rears widened to 12.5 and fronts reduced to 9 by Weldcraft
Other:
Corbeau A4 seats with lumbar, anti-submarine, and recline. Black cloth - SUMMIT - RECEIVED
XS Power D7500 battery to mount in the spare tire slot
1/0 power wire pre-terminated x2 - GP Car Audio
1/0 ground wire pre-terminated x2 - GP Car Audio
Power Distribution block
Battery cut off switch
I think that is everything... let me know if I forgot anything.
This will be a daily driver. I will drive this car to work every day that I am in town, most of that is stop light to stop light. 90% of the time the car will be under 4500 RPMs. I might go to the drag strip a couple of times per year, and that is the only time that the motor will see 7K.
The set up will be using Flex-Fuel (E54) and a Flex-Fuel sensor to knock timing down when I am forced to run 91 octane.
Race Engine Development will be machining the block, installing Darton sleeves, and installing billet main caps.
Katech will be installing their piston oil squirters.
Mamo Motorsports top end and recommended rotating assembly parts.
Probably going to install the motor myself, with the help of a friend that has done a few of these. Hopefully we can knock out the roll-bar and mini-tub at the same time.
BLOCK
Block – 12571048 - IN PROCESS AT Katech.
R.E.D sleeving, prepping, tapping for LS1 knock sensors, and installing Billet Speedworks main caps - DONE
Katech Piston Squirters - IN PROCESS
ROTATING ASSEMBLY
Pistons – Wiseco semi-custom - RECEIVED (might have to change these due to Katech piston oil squirters)
Piston Rings – included with pistons - RECEIVED
Wrist Pin – included with pistons - RECEIVED
Connecting Rods – 6.125” Molnar PWR ADR - RECEIVED
Rod bolts – Molnar spec ARP 2000 included with rods
Rod bearings – Clevite or King
Crankshaft and main bolts – Molnar 4” stroke - RECEIVED
Main bearings – Clevite or King
HEADS/CAM/INTAKE
MMS 265 LS7 heads - RECEIVED
Yella Terra Rockers - RECEIVED
YT valve cover gasket - RECEIVED
MMS MSD Intake - RECEIVED
Valve cover bolts - ORDERED FROM SUMMIT
Valve covers –
Intake manifold bolts – ARP - RECEIVED
Pushrods – Manton length based on engine assembly - ORDERED FROM MAMO MOTORSPORTS. Will be shipped after measurements during the engine build)
Lifters – link bar - axle oiling - RECEIVED
Head bolts – ARP - RECEIVED
head gaskets – ORDERED FROM MAMO MOTORSPORTS. (Will be shipped after measurements during engine build)
Crank Damper – ATI Aluminum shell, steel hub - RECEIVED
Cam – 237 / 249 116 + 4 - RECEIVED
Cam bolt – ARP - RECEIVED
ENGINE ASSEMBLY
Valley Cover and bolts – GM LS3 - RECEIVED
Crank sensor – LS1 - RECEIVED
Engine Coolant Sensor – LS1 - RECEIVED
Oil Pressure Sender – LS1 - RECEIVED
Cam bearings – Dura Bond
Block plugs – ICT Billet
LS coolant crossover - Improved Racing
Crank Scraper/windage tray – Improved Racing - RECEIVED
Oil Pump – MMS Ported LSA - RECEIVED
Oil pan bolts - ORDERED FROM SUMMIT
Oil pan – Holley - RECEIVED
Oil dip stick – F-Body - RECEIVED
Oil dip stick tube – F-Body - RECEIVED
Oil pickup tube – F-Body - RECEIVED
Rear cover bolts – ARP - RECEIVED
Crank bolt – ARP - RECEIVED
Timing kit – CLOYES Z Series - RECEIVED
Timing Cover - RECEIVED
Cam Sensor - RECEIVED
Timing Cover gasket - RECEIVED
Timing cover bolts - ORDERED FROM SUMMIT
Mechman 250 Altalternator
Oil cooler with fan - Improved Racing Setrab 20 row Series 9 with dual fans, 180 degree thermostat, and 200 degree temp switch for the fans - RECEIVED
Radiator - Dewitts 32-1139027M - probably ordering from Summit
Yella Terra valve cover gaskets - RECEIVED
ENGINE INSTALLATION
Motor mount bolts – ARP - RECEIVED
knock sensors – LS1 - RECEIVED
Knock Sensor/Cam sensor adaptor wire - ORDERED FROM SUMMIT
MAP Sensor – Stock LS1 - RECEIVED
MAP Sensor extension - will be part of custom wire harness
Kooks 2” primary LS1 headers - Oval Flange - RECEIVED
Zycoat coating on the headers - RECEIVED
Kooks 3” over the axle system with cats. - RECEIVED
Header Gasket - PART OF HEADER FROM KOOKS
Header bolts – Stage8 - RECEIVED
UMI K-Member - RECEIVED
UMI panhard bar relocation kit - RECEIVED
Remanufactured 411 ECM
New, customized, ECM wiring harness (EV6 injector plugs, Gen IV coil plugs, LS7 MAF plug, longer MAP sensor cable, longer Cam Position Sensor cable) - Current Performance Wiring
FUEL SYSTEM
CHRS1313 dual Walbro 450 - no switch - -8AN feed/return stock evap - RECEIVED
Holley 12-846 Fuel regulator - RECEIVED
MagnaFuel 7010 25 micron stainless filter - RECEIVED
Tony's recommended injectors - RECEIVED
Racetronix PTFE kevlar hose, -8 feed and return. -6 from regulator to fuel rail.
PTFE fittings - -6 to EFI, -6 male, -8 male, and -8 male angled. Probably ordering from Summit.
Derale 15800 Fuel cooler -8 AN. Probably ordering from Summit.
DRIVETRAIN
Clutch - Summit SUM-700901 - RECEIVED
I already have a TDP stage 3 Viper T56
I already have a Dana 60 with 4.10s
Wheels - OE Wheels Corvette Wheel C7 ZR1 18 front, 19 back. Both 56mm offset
Wheel shortening/widening: Rears widened to 12.5 and fronts reduced to 9 by Weldcraft
Other:
Corbeau A4 seats with lumbar, anti-submarine, and recline. Black cloth - SUMMIT - RECEIVED
XS Power D7500 battery to mount in the spare tire slot
1/0 power wire pre-terminated x2 - GP Car Audio
1/0 ground wire pre-terminated x2 - GP Car Audio
Power Distribution block
Battery cut off switch
I think that is everything... let me know if I forgot anything.
Last edited by FCar2000TA; 03-01-2024 at 07:20 PM.
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Popular Reply
03-19-2021, 07:09 AM
ModSquad
iTrader: (6)
You have to pick your battles in life carefully. My wife worked at the concessions at a local short track where I raced before I met her. She spilled a drink in the late Dave Allison’s lap one night when he was visiting. True story.
Got home from work late one evening years ago, and my wife wasn’t in the house. I went out to the shop and found her under my race car, finishing up some rivets on some new interior sheet metal, to help me get the car ready for a race. True story.
She’s ok...
Got home from work late one evening years ago, and my wife wasn’t in the house. I went out to the shop and found her under my race car, finishing up some rivets on some new interior sheet metal, to help me get the car ready for a race. True story.
She’s ok...
#3
ModSquad
iTrader: (6)
Sounds like a plan. I have a Diamond stage 3 on the shelf with new pressure plate assembly. Lightweight billet flywheel. Very lightly used. PM me if interested.
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ddnspider (03-18-2021)
#6
I'm in for the results.
Trending Topics
#9
I would be happy with around 600 RWHP through my Dana 60.
I hope to keep the budget under $25k. That is for the longblock, headers, and fuel system.
Last edited by FCar2000TA; 03-18-2021 at 12:14 PM.
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BCNUL8R (03-18-2021)
#10
10 Second Club
iTrader: (2)
Not sure on compression yet. I have to be able to run 91 octane in a pinch, but the flex-fuel sensor will tell the ECM to adjust timing for it. Not sure how much compression I can get away with. I will be going with whatever Tony recommends.
I would be happy with around 600 RWHP through my Dana 60.
I hope to keep the budget under $25k. That is for the longblock, headers, and fuel system.
I would be happy with around 600 RWHP through my Dana 60.
I hope to keep the budget under $25k. That is for the longblock, headers, and fuel system.
The following users liked this post:
rkupon1 (03-18-2021)
#11
TECH Enthusiast
Tony is the man, I’m sure you’ll love the way it runs.
#13
I will still have to be able to break the motor in, and go to the dyno for the tune, so I'm probably going to have to ensure that I keep the tank full of Flex-Fuel. I will probably also keep a half gallon of denatured alcohol in the car, in case I am forced to use 91 octane.
#14
10 Second Club
iTrader: (2)
Tony said that 11.25:1 would be safe, but I forgot to tell him that I will have a flex-fuel sensor and tune. The Wiseco pistons that I'd like to run say 11.9:1 with 70cc chambers.
I will still have to be able to break the motor in, and go to the dyno for the tune, so I'm probably going to have to ensure that I keep the tank full of Flex-Fuel. I will probably also keep a half gallon of denatured alcohol in the car, in case I am forced to use 91 octane.
I will still have to be able to break the motor in, and go to the dyno for the tune, so I'm probably going to have to ensure that I keep the tank full of Flex-Fuel. I will probably also keep a half gallon of denatured alcohol in the car, in case I am forced to use 91 octane.
The following users liked this post:
FCar2000TA (03-18-2021)
#19
TECH Enthusiast
On the block ask Steve since it is NA to see what he thinks about drilling bay-to-bay crankcase breathing holes in the mains as the 5.3 does not have the "windows' that the other LS blocks have. This is less of an issue on a forced induction set up. I think he (Steve) said drilling the holes was good for 10-20 hp.
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DualQuadDave (03-18-2021)
#20
ModSquad
iTrader: (6)