Mast Motorsports builds Ultimate NA LS Pump Gas Street Motor (870hp/665tq)

MastMotorsports · 10-19-2010, 05:58 PM

Mast Motorsports is pleased to share the dyno results of our RHS based 466 using a set of our PXR Canted Valve heads and Hilborn Individual Runner system. This was our first chance to dyno using our PXR Canted Valve Heads and we feel the results speak for themselves. The engine will find its home in a 56 Chevy and will utilize our new M-120 WBO2 ECM with Bank to Bank wideband closed loop control.

Published Engine Specs:

466 Cubic Inch, 4.300” Stroke 4.155” Bore
RHS Tall Deck Block
Callies Dragonslayer Crankshaft and H-Beam Rods
Mahle Custom Canted Valve Box in Box Pistons
Mast Motorsports PXR Canted Valve Heads
Hilborn Individual Runner Intake
Solid Roller 60mm Cam Core
Runs and Dyno tested on 93 Octane

870 Peak Horsepower at 7800 RPM using 93 Octane!

Name: RHS_466_Hilborn_14.jpg
Views: 646
Size: 97.3 KB

Name: RHS_466_Hilborn_14.jpg
Views: 646
Size: 97.3 KB

Goto our Facebook page to see the dyno pull!

SC2150 · 10-19-2010, 06:17 PM

That is amazing. 12 years ago we would have never imagined getting these type of numbers out of a LS based engine NA.

lexlueger · 10-19-2010, 06:26 PM

well done!!

*The_Blur* · 10-19-2010, 06:56 PM

GEEo · 10-19-2010, 07:00 PM

WOOW!!

All motor is the way to go! pure muscle!

Great Job guys! Thumbsup:

michael's maro · 10-19-2010, 08:01 PM

WOW....I want 1

danhr · 10-19-2010, 09:08 PM

pics for porn.

especially the intake

Kyle2k · 10-20-2010, 11:11 AM

*CamaroSpike23* · 10-20-2010, 01:17 PM

Do want!!!!!!

10-19-2010, 05:58 PM	#1
MastMotorsports Drives: 2010 Camaro RS/SS IOM Join Date: Aug 2010 Location: Nacogdoches, Tx Posts: 14	Mast Motorsports builds Ultimate NA LS Pump Gas Street Motor (870hp/665tq) Mast Motorsports is pleased to share the dyno results of our RHS based 466 using a set of our PXR Canted Valve heads and Hilborn Individual Runner system. This was our first chance to dyno using our PXR Canted Valve Heads and we feel the results speak for themselves. The engine will find its home in a 56 Chevy and will utilize our new M-120 WBO2 ECM with Bank to Bank wideband closed loop control. Published Engine Specs: 466 Cubic Inch, 4.300” Stroke 4.155” Bore RHS Tall Deck Block Callies Dragonslayer Crankshaft and H-Beam Rods Mahle Custom Canted Valve Box in Box Pistons Mast Motorsports PXR Canted Valve Heads Hilborn Individual Runner Intake Solid Roller 60mm Cam Core Runs and Dyno tested on 93 Octane 870 Peak Horsepower at 7800 RPM using 93 Octane! Goto our Facebook page to see the dyno pull!

10-19-2010, 06:17 PM	#2
SC2150 Account Suspended Drives: 2012 Camaro RS, RX supercharged Join Date: Dec 2009 Location: Bradenton, FL Posts: 6,063	That is amazing. 12 years ago we would have never imagined getting these type of numbers out of a LS based engine NA. Last edited by SC2150; 10-19-2010 at 07:06 PM. Reason: spelling

10-19-2010, 06:26 PM	#3
lexlueger Drives: V10 BMW M5, Supercharged 2SS/RS Join Date: Jun 2010 Location: Charlotte NC /Brooklyn NY Posts: 2,305	well done!! __________________ MAST 416 STROKER: STAGE 3 TVS 2300 CUSTOM CAM TPIS 102 TB IW 8 RIB PULLEY W/ OD COG REARS NX EXPRESS/NANO KIT KDI HEAT EXCHANGER/ROTOFAB RESERVOIR CIRCLE D 2800 TC/FLEX PLATE/ADM TRANS COOLER DSS DRIVESHAFT/1400 HP AXLES EATON TRUETRAC -LPE 3.27 GEARS DYNATECH HEADERS/MAGNAFLOW EXHAUST SQUASH RETURN STYLE FS ID 850's E85/ FLEXFUEL BMR/EIBACH SUSPENSION KILL MODE, ON.

10-19-2010, 06:56 PM	#4
The_Blur Moderator Drives: 2018 Harley-Davidson Street Bob Join Date: Nov 2007 Location: San Diego Posts: 14,768	__________________ RDP Motorsport//GEN5DIY//Cultrag Performance//JPSS//Rodgets Chevrolet// Operation Demon//Buy at Invoice//RACECARWEAR RESPECT ALL CARS. LOVE YOUR OWN. warn 145:159 ban

10-19-2010, 08:01 PM	#6
michael's maro RAM'S CAMARO Drives: 2010 camaro ss 2015 Z-28 Join Date: Apr 2009 Location: mt. pleasant south carolina Posts: 1,025 View My Garage	WOW....I want 1 __________________

10-19-2010, 07:00 PM	#5
GEEo OKCamaros Drives: 4 banger Diesel Join Date: Mar 2010 Location: Philippines Posts: 4,572	WOOW!! All motor is the way to go! pure muscle! Great Job guys! Thumbsup:

10-19-2010, 09:08 PM	#7
danhr BAMF SS Drives: 2016 Camaro 1SS A8 Join Date: Mar 2010 Location: Ford City, PA Posts: 3,024	pics for porn. especially the intake __________________ 2016 1SS A8: FBO + Circle D + P1X + Meth + Tuned by Pray Performance Stock Longblock 800 SAE rwhp. 9.4 @ 145 mph.

10-20-2010, 11:11 AM	#8
Kyle2k LVL 50 Troll Stomper Drives: 2010 Camaro Join Date: Feb 2008 Location: Indianapolis Posts: 3,463	__________________

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