WebApr 20, 2011 · It's the dished piston of the LQ4 that gave those 6.0's the 9.4:1 compression ratio. With your flat top,,,,plus an overbore,,,,plus a 4" stroker crank to reach your desired 408 cubes,,,,on a stock 317 head your compression would be quite a bit higher than the 10:1 factory rating. Share. Share this post on. WebSo the engine is completely disassembled now and is in excellent condition internally I have purchased stock bore LQ9 flattop pistons and pins to improve compression. So my first dilemma is: Do I need new rods? The LQ9 have floating …
Texas Speed LQ4 LQ9 6.0L LS Drop-in Forged Piston
WebFind many great new & used options and get the best deals for GM Chevy LS Ls2 Lq4 Lq9 6.0l 2002-2008 OEM Flat Top Pistons Set 8 4.00 Bore Size at the best online prices at … WebMay 14, 2012 · It's specs are: 607/.614 219/227 112 LSA+5°. That cam is nearly identical in specs to what Bortous is running in his LS3/LS2 engine. ~ (Bortous/Ed Curtis spec - 219/227 .625 .619 112LSA +4°) He is also running flat top pistons and has reported no problems with PTV and his heads have been milled .030. +/-. t.b.m. bariano
Upgrading the LQ4 and LQ9 Engines - Summit Racing Equipment
WebEntdecke LS Piston - 5.3L / 4.8L - Flat Top - Floating - L33 LR4 LY2 L20 - Used w/ Pin in großer Auswahl Vergleichen Angebote und Preise Online kaufen bei eBay Kostenlose Lieferung für viele Artikel! WebGM Chevy LS Ls2 Lq4 Lq9 6.0l 2002-2008 OEM Flat Top Pistons Set 8 4.00 Bore Size. 5.0 out of 5 stars based on 3 product ratings (3) $181.17 New ... No ratings or reviews yet. $658.28 New---- Used; Wiseco Flat Top 1.181x87mm Piston Shelf Stock Kit Fits Acura K20 K24. No ratings or reviews yet. $597.67 New---- Used; Wiseco Pistons Manley Rods for ... WebLQ4 - stock came at around 340 HP, ran a 9.5.1 compression because of the dish design of the pistons. LQ9's have the same internals but have a flat top piston raising the CR to 10.5.1 and gave a bump in HP & TQ. the reason 99-04 yrs are important is because of the crank and they have 24x reluctor wheels. After 04 they were switch to 58x. tbm backup gantry