Precision Race Components LS7 Cylinder Head Engine Dyno Results!!

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12-05-2007, 12:13 PM

Jason 98 TA

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Precision Race Components LS7 Cylinder Head Engine Dyno Results!!

We've finally got the opportunity to get the all new PRC CNC Ported LS-7 cylinder head installed on our dyno test LSx 454 engine! The engine was dyno tested with Texas Speed 254/260 camshaft, LS7 intake, Texas Speed all new 100mm MAF & 1 7/8" dyno headers!

Engine Dyno Video:
https://www.texasquadperformance.com/lsx454.mpg

Testing was done with both cylinder heads using the same valves & set to 70cc chambers.

Dyno test with stock GM cnc ported LS7 cylinder heads:

Dyno test with Precision Race Components CNC Ported LS7 Cylinder Heads:

Pic of the 454 on the engine dyno

30 Peak Horsepower Gains & 16 lb ft of torque!!

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Jason
Co-Owner, Texas Speed & Performance, Ltd.
2005 Twin Turbo C6
404cid Stroker, 67mm Twins
994rwhp/902lb ft @ 22 psi (mustang dyno) www.Texas-Speed.com

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12-05-2007, 12:24 PM

rmitchell242

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Looks good man!

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12-05-2007, 12:33 PM

hellbents10

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Impressive numbers. That cam def. works.

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12-05-2007, 12:41 PM

big reg

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Impressive to say the least. How much more does the LSx block weigh in comparison to say the LS7 or L92 blocks. I was looking to go the procharger route but this is downright crazy!!

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12-05-2007, 06:45 PM

gator's 99TA

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700+ hp with a streetable combination. outstanding!

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12-05-2007, 07:44 PM

allngn_c5

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Crazy power. Wanted to add this comment, seems like she picked up power from 5000 rpms all the way to 6900. What does the lower end look like ??

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12-05-2007, 09:50 PM

Patrick G

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Awesome. I know you guys wanted to make over 700. Looks like you easily did that. Nice work.

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2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2018 Cadillac Escalade 6.2L A10 Pat G tuned.
LS1,LS2,LS3,LS7,LT1 Custom Camshaft Specialist For custom camshaft help press here.
Custom LSX tuning in person or via email press here.

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Precision Race Components LS7 Cylinder Head Engine Dyno Results!!

Precision Race Components LS7 Cylinder Head Engine Dyno Results!!

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