Lq4 l92 head swap software

Feb 01, 2007 but more importantly for all gen iiiiv enthusiasts, the l92 s head flows so well, itll offer bolton performance as good or better than many aftermarket cncported heads on the market for a. Though we saddled the ly6 with fixed cam timing, the extra compression, head and intake flow all combined to improve the power output through the entire curve. The reworked top end is paired with a big camshaft and a full exhaust system. I thought about a possibility of taking my lq4 heads to the machine shop. Jan 10, 20 1967 shelby gt500 barn find and appraisal that buyer uses to pay widow price revealed duration. Cam custom spec by patrick g a baby cam by his words. Ict billet ls swap torque stall converter hub adapter transmission crank ls1 lt1 th400 th350 flywheel lm7 lr4 lq4 ls6 l59 lq9 lm4 l33 ls2 lh6 l92 l76 551165 by ict billet. They listened, devised and planned out an awesome package for its weekend wrenchers.

Sep 21, 2015 the l92 head was the first to boast 330 cfm while being dirt cheap, which started the craze. The intake ports are similar to ls7 heads and differ from regular catherdal port heads. Run on the dyno in stock trim with the 317 heads, stock lq4 cam and truck intake, the 6. The lq4 served in anything from breadvans and boats to suvs between 1999 and 07. The l92 was a vvt motor so to get that cam to work may be a lot of trouble unless the cam was a vvt delete cam. On the ls3, ls9 and ls7 l92 gm heads, the intake rocker features an offset exhaust rockers are the same as used on ls1, ls6 and ls2. Youd need a big cam, some real head work, 1 78 headers to make a hp goal like that. What would be my best options for heads on a built lq4. Chevy performance l76l92 aluminum cylinder head jegs. Im running l92s so would i need head bolts specifically for them, or are all gen iv head bolts the same. This means that the valves will be closer to the cylinder walls. Case in point, pace performances conversion package to swap the factory lq4 top. Upgrading the lq4 and lq9 engines summit racing equipment. We then swapped in a set of 36 lb svo injectors, tuned, and did 428 rwhp but torque jumped to 383 lbft.

Iron heads, small cam and the old sbc crank rear flange thickness. Never heard of a 700 series anything so im guessing its a typo. See more ideas about ls engine, engineering and ls swap. The most powerful engine offered for the 1973 camaro offered just 245 horsepower, so the stock lq4 would make for a much quicker car. Combine that with ls3 l92 heads and youll make hellacious power and torque. Lsx tech sticky specs, castings, swap info, etc ls1, ls2. So i followed some ebay ads and picked up an ls3 intake for cheap. Looking to make 500hp with a ly6 need help ls1lt1 forum. Ive read articles on this setup and im pretty impressed. You can also do a carb swap on the ls motors and they make great power. This pace pac package is a very affordable way for you to upgrade to the next generation of gms performance powertrain offering. Aug 09, 2017 this 1973 camaro has an lq4 truck motor bottom end with ls3 heads, and lays down solid numbers on the dyno. The lq4 is a common engine found junkyards, yet is capable of building impressive power with the right upgrades. To illustrate what this generational gen 4gen 3 ls head swap might be worth, we decided to compare a set of 317 truck heads to a set of ls3 heads.

I tried to get him to go the ls route, but he is more comfortable with the old school sbcs. The l92 heads i bought are cast by pro header and they are a 64cc combustion. The lq4 heads have a 71cc combustion chamber so these new ones will be even lower. Show full signature 96 bbb cheapo chrome intake, 2. You should be able to hook up with that tire setup. These ironblock truck motors produce 345 horsepower at 5,200 rpm and 380 lbft of torque at 4,000 rpm from the factory. Cnc port ls3l92l99l76 821, 823, 716 cylinder heads pair. L92 vs ls1 and ls2 heads sick flow, less dough tech. I am pretty set on an ly6 or lq4 but not ruling out the lq9 the main problem i am having is the ly6 has vvt which i dont want and the lq4 dosent have the l92 heads which would be a cheaper, remove vvt or buy l92 heads. If you wish to simply reuse stock heads on a budget build where peak performance is your only goal then jump up to a 240 or so lsl or xer cam and it wont be all. The l92 heads have proven themselves to be rockets based on the racing influenced design of the heads which have raised runner floor and wider port opening by virtue of an offset intake pushrod. But, i think ill go with a lq4 instead due to the l92 headsintake and a few more cubes. Fortunately, the lq4 in this 1973 camaro is not stock. After a few adjustments to the tune it did 425361, but the injectors were at 100% duty cycle.

This is a discussion on carcraft lq4 l92 550hp build up within the new member introductions forums, part of the site feedback administrative requests category. It seems everyone has been writing articles concerning upgrading a usedsalvaged 199808 lq4 6. The massive intake valves necessitate a 4inchorlarger bore with no other special consideration needed. The ls3 heads will fit on any ls block with a minimum 4. Dec 15, 2017 ls heads test the dyno naturally, the answers came on the dyno, but not before deciding on a proper test mule. The engine specs and information listed here is for the stock lq4 engine. The ls motors like to rev so i would consider a cam and stall swap if you go the lq4 or lm75. Ly6 has the better heads, but from what i have read, they are very difficult to tunecam swap given the vvt. Hi all, new to the car scene and building my first. Apr 30, 2016 superchevy posted an article showing a budget build 6. The chevrolet performance l76l92 aluminum cylinder head is designed to fit any ls family engine with a four inch or larger bore. Upgrading to the more advanced and better flowing l92 cylinder heads raises compression from 9. The ls1, ls6 and ls2 heads use a straight rocker no offset between valve and pushrod contacts, and both intake and exhaust rockers are identical. L92 cylinder heads have become very popular additions to the lq4 lq9 iron truck blocks because of their flow.

Equipped with the lq4 cam and run with 1 78inch headers, the l92 produced peak numbers of 445 hp at 5,600 rpm and 460 lbft of torque at 4,600 rpm. Drivetrain loss sucks in trucks, to top it off the l92 heads need to breath to shine. Completely stock motor, 317 heads and truck intake on it. Sep 21, 2015 since the factory l92 cylinder heads were released, one of the hottest topics has been how to convert older cathedral port lsseries combinations. We show you how these gm l92 cylinder heads can bring you 550 hp for. Im gonna buy and install an lq4 one of my buddies is gonna sell to me, its from a 99 2500hd. Ls3 heads have 90 gram valve while the l92 truck heads have much heavier valves. The lq4 had dished pistons and the lq9 were flat tops, no valve reliefs.

The 317 heads were a bigger chamber, w cathedral port heads. They provided us with s10ls swap headers with 1 78inch primary tubes. He removed the fi setup and is using a th350 for a transmission. I used to have a dyno simulation software where i could plug all those. I am thinking of maybe getting some l92 heads, with an ls3 intake.

If you run aftermarket heads like a stage 2 ls6 or some l92 s then you can run a more civilized cam as mentioned above around a 224 would be perfect. I know with the l92 ls3 heads and the hot cam it should be very close to 500hp. Help complete lq4 wl92 heads build third generation fbody. L92 heads are a gm production head that can be found on the 6. It just had slightly higher compression ratio and for the cost he can get some l92 heads, valve springs, cam and do better. Gm performance parts l92 cylinder heads wonder head. May, 2012 l92 cylinder heads have become very popular additions to the lq4 lq9 iron truck blocks because of their flow. And, were upgrading the valve train to take advantage of our new found power. There is also the issue of valve shrouding with the 4. My fil is doing a 98 vortec swap into his 83 sierra. Id really just get a lq4 and do a camvalve spring swap. The l92 vs the ls3 heads l92 has the bigger heavier valves,not machined vs the ls3 valves.

And 500hp out of a mild cam, stock l92s aint gonna happen with an lq4. Lq4 build head install mti stage 2 heads 862 casting using a torque angle adapter duration. The cam is not huge but the larger valves and thin gasket could cause interference with a. The ls based smallblock engine is the primary v8 used in general motors line of rearwheeldrive cars and trucks. Generation iii internal engine lq4 l92 head swap advice i have an 02 silverado with a 6.

With a cam and head swap with pump gas on a gen iii 6. Id go with a larger grind and to show what the heads and more cui are capable of, and a 6l with l92 heads is capable of much more. For marketing purposes, it was also known as the vortec 6000. The basic ls variations use cast iron blocks, while. The allstainless headers also feature merge spikes in the collectors, and dump the spent gasses into threeinch stainless exhaust system with an x. Considering the ls2 cam made over 400 flywheel without a clean run on a 100% bone stock lm7 junk yard engine, placed on an extra 40cid, breathers, and the better flown 317 heads should make 400whp. But i just read an artical in gm high tech that an aftermarket set of cathedral heads flow just as good as stock ls3 heads but the cathedral heads have better low end flow. Introduced in january 1995, it is a clean sheet design with only rod bearings, lifters, and bore spacing in common with the longstanding chevrolet small block v8 that preceded it as the basis for gm smallblock v8s. I wont have the money to do any modifications to it once i get it installed other than headersexhaust and a good flowing intake. A popular upgrade to the lq4 and lq9 is to install a set of ls3 heads and intake. Case in point, pace performances conversion package to swap the factory lq4 top end with the better breathing, l92 cylinder heads and highlift camshaft. Dart 225 heads fully worked by pmfl, fti streetsweeper cam 236240. Sep 26, 2017 with the induction side of the puzzle figured out, we turned to stainless works in cleveland, ohio, for an exhaust solution.

The 317s and 243s flow just about the same however the testing by wcch has shown a small increase of flow stock 243s vs stock 317s going to the 243s most likely due to the better designed combustion chamber. It has been fitted with a set of ls3 cylinder heads and an ls3 intake manifold. If you go with a carb setup the victor jr intake is what most guys use. Lq4 l92 head swap advice ls1tech camaro and firebird forum. How much of a gain could i expect from l92 heads, intake manifold, and tb when. Ltx and lsx help complete lq4 wl92 heads build okay, i know im not. I have read results of about 20hp from the added compression alone. Same thing with the ls3 heads the ls3 head is spm and the l92 s are sand castings. Thankfully it is a pretty simple head and intake swap, which lends itself well to fairly high horsepower combinations on a modest budget.

These heads are basically the same as the ls3 head. Ls rocker arm bolts these 8mm allen head bolts are an excellent upgrade to the stock ls rocker arm bolts. Completely different intake is used on l92 ls3 heads. Ive been thinking about and planning for the ls1 swap in my car for a while. Less space around the valve can limit the air flow. For those unfamiliar with the various casting numbers, the cathedralport, 317 heads were offered on 6. I think with the lower combustion chamber itll make a big difference over the stock l92 heads. I plan on getting some headers and ive read up a little and heard the heads on this motor arent the greatest, so i was gonna look into some ls3 heads, i wanna look into a cam to but i dont know nearly enough about them to just go buy one, its still gonna be one of my daily drivers so i dont want. Ls rocker arms, trunion kits ls1 ls2 ls6 lq4 lq9 ly5 ly6. Testing the new gm l92 cylinder heads hot rod network. May 21, 2012 case in point, pace performances conversion package to swap the factory lq4 top end with the better breathing, l92 cylinder heads and highlift camshaft. We get 92 more horsepower out of an l92 with a simple cam swap. The 823 heads in the op are the l92 ls3 rectangular port heads and have a 70cc combustion chamber and 2. Afrslp 225cc heads and lsx 78mm intakeour test car belongs to steve moffa of cherry hill, new jersey, and when it arrived back at slps newly reopened.

The weight difference is negligable between the two at 50lbs. Its approximately 420whp, and a head cam ls1 can easily hit that number. We are looking at a 1973 chevrolet camaro powered by a built gm lq4 v8. The lsseries family of engines has continued chevrolet performances tradition of raising the power potential of the legendary smallblock v8. Ly6s and the power potential, it is a difficult decision which way to go. Mar 23, 2007 basically they took a bone stock lq4 installed a set of the new l92 heads from the new 6. Today, were adding more horsepower and torque to our 1971 c10s transplanted lq4 engine by swapping out the cam. Mast motorsports recommends that every cam be accompanied by a calibrated tune using hp tuners, efi live, or equivalent software. Since the factory l92 cylinder heads were released, one of the hottest topics has been how to convert older cathedral port lsseries combinations. Then i thought about an lq4 with l92 heads and an ls3 intake.