Aug 13, 2010 – 5.3L truck motor with ARP rod bolts, Custom cam (236/236 .

7 posts - 5 authors - Last post: Jun 18, 2005will 5.3L heads fit on a 4.8L and if so will it improve my horsepower. i think i remember hearing once that on a 305 the 350 heads helped out .

1 post - Last post: Jan 25, 2005FFHP Stage 2.5 5.3L Heads Introductory Special Sponsor Deals & Group Purchases.

22 posts - 10 authors - Last post: Jul 15, 2009found this on LS1tech: Here's what was in the engine: 5.3 block aluminum (doesn 't really matter if it's iron) 4.8 flat top pistons 5.3 rods - ARP .

All Vortec 4300s use a cast iron block and heads with a 4 in (101.60 mm) bore . Displacement is 5.3 L (5328 cc (325.1 cu in)) from 96.01 mm 3.78 inch bore and .

3 posts - 1 author - Last post: Apr 2, 2009Hello, My question is simple. Other than the gain in a point in compression, what is the pro/cons of the 5.3l head vs LS1 heads?? If both were .

Plans are: 5.3 with a zo6 cam, ls7 lifters, hardened push rods, yellow Z06 springs, Milled and ported 862 heads, and LS2 timing chain. 98 fody manif.

Jul 29, 2011 – Has anyone on here ran this combo and if so did you have any problems with the higher compression? wondering if pump gas is ok for this .

10 posts - 6 authors - Last post: Apr 2Stock LS1 heads or Ported 5.3L heads? . For cathedral port heads my vote is for ported 243 casting, aka LS6 . Who's porting the heads? .

7 posts - 6 authors - Last post: Jun 18, 2005[Archive] 5.3L heads on a 4.8L? Technical Department.

2 answers - Jun 4, 2008Top answer: Yes. How you cam the engine will make all the difference in how effective your Supercharger is, btw. That's where I come into the equation. .

2 posts - 2 authors - Last post: Jul 9, 2009Does anyone here think that just upgrading the stock heads that they could handle a mild to moderate street cam..im talking push rods, bee .

Center bolt cylinder heads. Lingenfelter offers a CNC ported version of the LS1 style aluminum cylinder head used on the 1999 - 2007 5.3 L aluminum truck .

15 posts - 6 authors - Last post: Aug 18N/A 5.3l heads/cam ideas LS-1 and Mod Motor Tech.

Ported 5.3L heads versus GMPP LS6 Heads C5 Tech.

3 posts - 3 authors - Last post: Jun 25, 2008installing new cam and heads on 5.3L - Discuss Chevy, General Chevy Technical Discussion, and Chevrolet Tech topics in the Chevy forums .

14 posts - 4 authors - Last post: Sep 3, 2010The reason so many LS1 cars run 5.3L heads is not becasue they flow better. Stock for stock LM7 heads flow nearly identical to LS1 heads. .

Trick Flow® GenX® 205 cylinder heads were designed to build maximum power in 5.7L and smaller bore LS engines, such as the Vortec 4800 and 5300.

All PRC cylinder heads are extensively researched and tested. The flow data below shows the superior performance of the PRC stage 2.5 5.3 cylinder heads! .

17 posts - 11 authors - Last post: Jan 102004 Chevy Avalanche 5.3L. 119000 miles. . coolant in the oil, probability of craked heads is slim to none unless you recently ran your engine .

4 posts - 3 authors - Last post: Mar 5, 2006Anyways, will the increased c.r. with 5.3L heads, will i be able to run 91 octane? That is all i can get. However it is at 4500 feet above .

9 posts - Last post: Jan 19, 2010I just swapped motors in my silverado. My 1999 5.3L, I guess didn't have enough coolant so it blew my head gasket, my freeze plugs are out, .

If I were to swap my original 5.3L heads with ported and polished heads about how much of a gain would I see? Is it worth it? What are the good and.

14 posts - 11 authors - Last post: Nov 1, 2010It seems like the general consensus in this forum is that 5.3L heads (in .

These GM LS Series 5.3L head and cam kits from Patriot Performance are a knockout combination to up your performance. The heads are CNC-ported, and .

3 posts - Last post: Nov 2, 2008I'm getting some bare heads for pretty cheap and I'm wanting to know what I need to do to get them to work effectively on my LS1. They've been .

Dec 8, 2007 – First run after heads/cam swap.. This combo wound up putting down 421rwhp and 409ftlbs torque.. Running with open headers.. Mods: Fast .

Apr 30, 2009 – HPE stage 3 heads/ S cam/ 2002 WS6 458 RWHP/ 402 RWTQ.

9 posts - 8 authors - Last post: Jul 23Suburban 5.3L coolant leak into engine discussion in the car forums by . my 2004 suburban I was told the 5.3 came through with heads that .

Used Chevy Cylinder Heads. Used AVALANCHE 1500 Cylinder Heads. Used AVALANCHE 1500 Cylinder Heads. 5.3L (5.3L) 6.0L. Used AVALANCHE 2500 .

As we mentioned earlier, the big reason a stock 5.3L does so well with just a cam change is all due to the heads. A stock 5.3L cylinder head uses a similar port .

3 posts - 2 authors - Last post: Jun 25, 2008how bad is the flow on stock 5.3L heads? i think ive got a bent pushrod so im thinking of just pulling the heads and replacing the top end .

9 posts - 6 authors - Last post: Jan 24, 2009I'd reccomend those products, a 160-degree thermostat, ported 5.3L heads, and one of Comp's truck cams. Post Reply. mpayne. Enthusiast .

I just picked up a set of Absolute Speed 5.3L Heads that I hope to use on my .

Precision Race Components Stg. 2.5 5.3L Heads & Cam Package.

Problematic head gaskets & 5.3L heads [Long - maybe a record] C5 Tech.

26 posts - 8 authors - Last post: Oct 15, 20106.0L heads on 5.3L??? or port the LSx Discussion. S10Forum.com is the place to discuss 6.0L heads on 5.3L??? or port the.

9 posts - 4 authors - Last post: Apr 22, 2009Theyre all out of the same 03-04 ssr but i cant remember which year it was. Ill run the VIN on the block tomorrow and see and ill post it back .

Oct 1, 2008 – It seems like the general consensus in this forum is that 5.3L heads (in stock form ) would be waste to put on an ls1, because even though they.

What kind of compression are we looking at to swap 4.8/5.3L heads on a LQ4 6 .

Check out this 5.3L 383 Stroker engine build with a Vortech twin-screw supercharger, a FAST LSXRT intake manifold, a Trick Flow Track Max camshaft, Probe .

7 posts - 3 authors - Last post: Mar 3Gauging interest, F700BT and ported 5.3L heads South Western.

Check out this 5.3L LM7 engine build with Trick Flow GenX 205 heads, Wilson .

Jun 27, 2011 – So I picked up a set of TEA ported 5.3L heads today. They are milled .020 and have 59cc chambers. My cam specs are 224/230 .609”/.604” .

Both the 4.8 L and the 5.3 L share the same engine block and heads. Although .

Camaro/Firebird Patriot Performance Heads, LS1 CNC Ported 5.3 L Cylinder Heads, Stage II, These heads offer 11:1 compression, comes with Peformance .

20 posts - 12 authors - Last post: Jun 5, 20105.3L heads questions Generation III Internal Engine.

ALL NEW UPDATED Precision Race Components 5.3L stage 2.5 CNC ported cylinder heads. Dyno results have shown up to 50rwhp gains with the addition of .

10+ items – YOUR SHOPING CART Items in Cart: 0 items >> View Cart >> .

Its tax time, and I'm blowing it on Stage 2.5 5.3L PRC heads and an MS3 cam .

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