Calculations based on LQ4: truck norris [HOST] LQ4 with heads: CR = (advertised CR) DCR = LQ4 with heads: CR = DCR = That cam is an excellent towing cam. It's meant for stock engines, as you can see from what happens with smaller chambers than factory. DCR is Show All. The heads were used on L LS1 applications and are considered by many to be just a minor step up in performance from the In terms of peak flow, the With the heads my compression ratio will be about The machine shop thinks I should shave the heads for even more compression. I honestly think might be a little high and should knock it down closer to I know the later model trucks gm bumped the compression to The new firing order of gave the LS1 a unique sound compared to its Gen I and Gen II cousins, and the overall size was kept close to that of a Gen I small-block making it easy to While searching for the best cylinder heads to maximize power and performance in a L, L or L LS engine build, Chevy LS Heads are an attractive option due to their incredible price point and high-performance capabilities. These remanufactured cylinder heads offer tremendous value, as they can Upgrading LQ4/LQ9 Cylinder Heads. The stock heads can be CNC ported for more airflow and milled up to in. for more compression. Flow numbers can be as high as cfm
Low oil pressure approximately 800 miles into new cam swap
LQ4 build up info. So I’m pretty new to the LS stuff and I’m pretty sure there are some very knowledgeable people here that can shed some light on the deficiencies I have on this matter. I’ve been considering doing an LS engine and had figured on picking up a or but have not made any serious plans to make Posts · Joined #2 · Jul 20, I run / on my would be a cute little cam for the LQ4. The 4L80 trans stalls a lil higher than a 60E so you shouldnt need any converter change. Sell the and get / What you want to do to those is probably how much the s would run you Run on the dyno with the FAST LSXR intake, Katech-ported heads and Summit Racing Pro LS Stage 4 cam, the Strictly Performance L produced hp at 6, rpm and lb-ft of torque at 57,00 rpm. Richard Holdener is a technical editor with over 25 years of hands-on experience in the 2,, RPM. Excellent low-end torque. These camshaft options provide a range of choices for enthusiasts looking to extract maximum high-end power from their LQ4 engine with heads. The duration, lift, and power band range specifications help determine the performance characteristics of each I think for the money the is a better option. Here’s my thinking. The has. intake and exhaust with a 65cc combustion chamber. The has. intake and exhaust with a 61cc combustion chamber. If I have a set of intake valves put in the with the smaller combustion chamber wouldn’t I If doing the , see what heads are on the If they are / swap them on the Even with the smaller intake valve, the chambers are small and will up the compression a point and should make good power. Get one of the Summit LS truck cams and reuse the lifters. The stock manifolds are
Does this need more work? LQ4, 706 heads BTR v2 stage 2 truck …
K. 99K views 4 years ago WESTECH PERFORMANCE GROUP. Previously, we compared the stock / heads to the / heads on a cammed L test motor. As far as LS heads go it’s just s that are a no go. / are same flow and head, was the weak recalled cast. s on the LQ4 and LQ9 suck unless you mill the hell out of them. heads wake up them work truck dished piston LQ4 very nicely. Silverado Z71 LTZ Got a load of new parts for the LS finishing up the heads, also managed to get a little work done on the sx I put some ported L92's (milled) and a LS3 intake (w/NW92mmTB) on a stock LQ4 and it under performed IMHO. Cam // @ It made / through a stalled 4L60/10 bolt @ gears. Pretty sure the lack of compression on those dish pistons is part of the problem • 1 yr. ago. I have a Lq4 I put heads on. The small valve and small chamber worker well with the large cubic inch L. Bottom and mid range torque were drastically increased. Cylinder Head Specifications. Years: Casting Numbers: , , Material: Iron. Aluminum. Combustion Chamber Volume: 71cc. 71cc. Intake / GET THOSE PROJECTS DONE! SHOULD YOU RUN HEADS ON YOUR L FOR MORE TORQUE? WHAT ABOUT THE CHANGE IN COMPRESSION LQ4 bored out 20 thou to Speed Pro hcpamm flat top pistons sitting below the deck Felpro PT Bore: Compressed thickness Head gaskets If this is a street driver and expect to be sub hp, then a set of heads will be better yet - yes - small valve truck heads. The