Which factory LS cylinder head works best with a turbo 706 or 317. Choose the Best for Power.
For marketing purposes it was also known as the Vortec HO 6000 or VortecMAX.
Best cam for lq9 with 317 heads. But no matter your LQ9 is the gold standard of solid GEN 3 builds. Dart 225 heads fully worked by PMFL FTI StreetSweeper cam 236240 610 610 w full cam kit Edelbrock Vic Jr manifold with custom elbow 48lb injectors Custom CAI with raim air scoopKooks 1 78 longtubes catless with. Hey I am new to the site but not new to truck forums.
However their thin cross section allows for a high-velocity and smaller-volume runner design with excellent flow. Im having a hard time finding a set of 243 or 799 heads so I was considering having my 317s milled approx. LS6 intake is a sought after cathedral port piece from GTOs and Vettes.
My brother pulled a complete Lq9 60 with 317 cathedral heads out of a 2003 Denali from the junkyard. Here is my situation. 243 or 799s are the ones to look for they flow more and increase compression therefore you wouldnt have to mill.
Mechanically similar General Motors LS and LS. I am trying to do some research on the best cam for a NA LQ9. The LS3 heads will fit on any LS block with a minimum 4000 in.
25-30 thousandths and going with an 040 head gasket to bump up the compression030 is the limit you can. I need a few recs on what type of cams I should consider for a stock bottom LS1 with Lq9 317 heads with Cam recommendations for 317 heads This is a discussion on Cam recommendations for 317 heads within the Internal Engine forums part of the LSx Technical Help Section category. Working with the intake and camshaft the cylinder heads are part of the trio of performance components that dictate the power output of the engine.
Turns out he needs a new rotating assembly. Unlike cathedral-port heads 706 317 243. Performance Bore Stroke Cylinder Heads Cam Specs More.
I plan on doing the swap sometime this summer. The 317 offered peak intake flow numbers of 244 cfm but the LS3 head peaked at a whopping 318 cfm. Ultimate LS Cathedral Port Cylinder Heads Guide.
It has some chop at idle but driveability is great. Since bore size was a major concern for the head upgrade we selected an affordable 60L truck block ours came from Gandrud Chevrolet as the starting point for our test motor. This LS head shoot out between the s.
However the LS3 had a 4065 in. Run with the stock cam the mildy modified TBSS intake headers and 92-mm TB 53L produced 359 hp at 5300 rpm and 384 lb-ft of torque at 4200 rpm. For 1500 exchange 1800 outright.
September 24 2015 by LS Engine DiY. In the case of the LS3 and especially LS7 the factory heads offer exceptional airflow. The LQ9 is a 60L Gen.
I recently purchased an LQ9 with 317 heads. I have alot of stock parts from my V sitting in the garage and trying to figure out a budget way to combine the two. I was wondering if anyone knew off hand what intake I can throw on WITHOUT changing the heads.
Cathedral port cylinder heads have been mistakenly dismissed by many in LS-series circles for being old-tech. This run was 75 to 142 mph 3rd gear. Run on the dyno in stock trim with the 317 heads stock LQ4 cam and truck intake the 60L produced 401 hp at 5200 rpm and 432 lb-ft of torque at 4400 rpm.
I was happy to hit over the 400 whp mark. I have a completely stock lq9 and they speced out a cam for me and I love it. LQ9 Engine Specs.
LQ9 w 317 heads Intake Manifold Upgrade Without Swapping Heads. Hey guys I am starting to research my cams. It simply really just needs to run as the engine.
317 heads are truck heads that flow decent and are sought after the turbo guys because of their larger combustion chambers. Gen IV LS Cylinder Head Shootout. The cam swap showed promise but not without some additional flow so we shipped out the 317 heads to Total Engine Airflow for some massaging.
Its the age-old comparison airflow vs compression. After installation of the COMP 54-454-11 cam the peak numbers jumped to 467 hp at 6600 rpm and 418 lb-ft of torque at 4900 rpm. I am running a TH400 and a 3400 stall from trans specialties and the vehicle put down 348 to the tire.
Richard is the guys name. I currently have a 2004 RCSB that is that beautiful GM Victory Red with a 53L. Believe it or not the 706 heads from the 53L are the most effective and least expensive head upgrade for a mild daily driven 60L.
Also Im throwing it in a 68 Chevelle. The information listed here is for the stock engine. Treated to their Stage 2 porting peak flow numbers for the 317 heads increased.
The LS3 head offered an additional 70 cfm over the stock 317 head. I am looking for. My goal is to use as much stock items as I can but I hate the look of the stock truck intake.
With plenty of flow to support the intended power. A popular upgrade to the LQ4 and LQ9 is to install a set of LS3 heads and intake. ANd they even have a swap out for your exact 317 head 250cfm to just over 300cfm.
3 small block engine used in GM trucks between 2002 and 2007. This means that the valves will be closer to the cylinder walls. The cam swap was worth 108 hp.
Hey guys I am starting to research my cams. You are going to have to get those LS6 heads ported a good shop is West Coast Cylinder Head.
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