reliefs - LS1TECH - Camaro and Firebird Forum Discussion

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9805, cut, cutting, engine, fly, flycut, lq4, lq9, ls1, ls1tech, piston, pistons, relief, reliefs, valve

LQ4 with fly cut pistons?

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1 2)

petercalaguiro on 03-08-2011

07-06-2023 09:37 AM
by G Atsma

20

20,214

Generation III Internal Engine

4cc, bb, do, kiss, kissed, lt1, matter, pistoms, piston, pistons, releifs, relief, reliefs, valve, valves

what does the valve reliefs in the pistons do?

mike c. on 01-03-2004

03-08-2020 06:44 PM
by G Atsma

13

25,550

Generation III Internal Engine

205, afr, cut, cutting, fly, flycut, flycutting, g5x4, ls1, ls2, piston, pistons, reliefs, tool, valve

How to flycut pistons in an LS1 for free! (almost)

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1 2 3 4 5)

LS1Formulation on 07-30-2009

10-25-2018 03:13 AM
by dreadpirateroberts

83

88,555

Generation III Internal Engine

heads, ly6, milled, milling, pistons, reliefs, valve

LY6 pistons w/milled l92 heads

01SOMZ28 on 02-24-2014

02-24-2014 03:42 PM
by redtan

1

3,167

Generation IV Internal Engine

236242, cam, depth, guerra, hot, ls1, ls1tech, mahle, patrick, piston, pistons, relief, reliefs, relieve, valve

I have forged pistons w/ valve reliefs...do I really need to check PTV clearance?

slammin86 on 07-05-2013

07-08-2013 09:40 AM
by KingPin1094

14

6,449

Generation III Internal Engine

53, big, cam, dick, donkey, heads, ls1, ls7, reliefs, stock, valve

Big cam and 5.3 heads.

mtt14 on 03-16-2013

03-18-2013 05:42 PM
by Sales@Tick

7

2,893

Generation III Internal Engine

bottom, ls1, mahle, pistons, reliefs, top, valve

What pistons are these? Came in my ls1 longblock I bought

sicvenm on 02-26-2013

02-28-2013 11:37 AM
by SNLPerformance

8

1,095

Generation III Internal Engine

6l80, build, cam, engine, head, l92, ly6, mast, mill, options, reliefs, swap, valve, vvt, vvt3

LY6 street build (mostly)

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1 2)

Hy82e on 04-28-2012

02-14-2013 08:14 AM
by coverman66

35

16,367

Generation IV Internal Engine

cost, cutting, fly, flycut, heads, ls1tech, ls2, ls3, lsa, piston, pistons, reliefs, special, tool, valve

Fly cutting / valve relief - LS2 block with LS3 heads

Don Nguyen on 02-02-2013

02-03-2013 06:00 PM
by Mighty Whitey

9

4,834

Generation IV Internal Engine

2007, 60, cutting, deep, lq4, radial, relief, reliefs, valve

cutting valve reliefs

windmill on 01-05-2013

01-07-2013 08:50 PM
by slamminjim

5

1,213

Generation III Internal Engine

454, de3ck, engine, l99, like, ls3, lsx, number, part, piston, pistons, relief, reliefa, reliefs, valve

L99 piston info needed please

litle88 on 08-26-2012

08-27-2012 04:35 PM
by litle88

2

9,060

Generation IV Internal Engine

4005, 4010, 4030, 60l, bore, filing, fit, general, gm, lfa, ls, ls2, motors, piston, pistons, reliefs, rings, valve, wiseco

Piston suggestions for my new 6.0L LFA

speedshifter on 07-13-2012

07-15-2012 01:02 PM
by speedshifter

5

8,398

Generation IV Internal Engine

59cc, cc, compression, faster, figure, loncin, ls1tech, ls3, make, measure, motor, ratio, relief, reliefs, run, rwliefs, valve

how do you measure valve reliefs in cc?

ariel27 on 04-07-2012

04-08-2012 05:57 AM
by RezinTexas

1

1,565

Generation III Internal Engine

231236, 4cc, cam, clearance, clearnce, g6x3, ls3, mahle, piston, ptv, reliefs, tsp

PTV clearance

1badeagle on 10-31-2011

11-03-2011 07:16 PM
by 1badeagle

3

1,039

Generation IV Internal Engine

12cc, 4030, cutting, heads, lengths, ls1, ls2, ls3, piston, pistons, relief, reliefs, relife, sizes, valve, wiseco

LS3 valve relief question

Fast 95 Z28 on 09-23-2011

09-23-2011 11:09 AM
by Fast 95 Z28

2

3,721

Generation III Internal Engine

383, abdc, compression, dish, exhaust, extra, flat, intake, ls1, machining, pistons, ratio, reliefs, size, top, valve

comp ratio for 383 ls1?

ausls1 on 06-21-2011

06-22-2011 05:47 AM
by ausls1

3

4,934

Generation III Internal Engine

4cc, 64cc, cam, lift, ls1, ls3, max, reliefs, valve

what the max lift i can run b4 running into PTV PROB.

xdanny510x on 05-26-2011

05-26-2011 02:57 PM
by xdanny510x

2

938

Generation IV Internal Engine

average, barley, bbc, cam, ccs, clearance, clearence, lt1, minimal, power, problem, ptv, reliefs, rod, sealed, touching, valve

PTV clearance for a friend

speedracer2536 on 05-02-2011

05-05-2011 08:56 AM
by speedracer2536

19

1,106

LT1-LT4 Modifications

2500hd, 60, 60l, build, compression, engine, l76, lfa, ls1tech, ls2, pictures, pistons, rcsb, recall, reliefs, valve

LFA compression?!

Lennart on 03-09-2010

04-12-2011 06:01 PM
by slayer performance

4

1,551

Generation IV Internal Engine

beam, block, blocks, eagle, hbeam, je, long, lq4, pic, pistons, reliefs, rods, sale, valve

LQ4 Long block , JE pistons, Eagle H beam rods!

FASTFB on 04-02-2011

04-02-2011 09:30 PM
by FASTFB

2

1,305

Parts Classifieds

cam, clearance, flat, gm, killer, l76, ls3, piston, ptv, reliefs, review, solve, tops, turbo, valve

ex valve ptv clearance LS3

hymey on 03-22-2011

03-24-2011 08:06 PM
by hymey

3

1,421

Generation IV External Engine

2010, 351w, 60, cam, camaro, cams, dod, l96, ly6, oil, pressure, reliefs, ss, swap, swapping, valve, vvt

Can a newbie do a VVT cam swap w/no problems?

Goldhawg on 02-19-2011

02-21-2011 05:53 PM
by Goldhawg

5

2,176

Conversions & Swaps

12, 53, 93, bolt, camaro, cutting, faster, for, forums, heads, ls1, make, porting, reliefs, sale, strange, valve

Oh great, SI6 cam & TEA 5.3L heads = no PTVC....

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1 2)

Ksths2 on 02-06-2010

02-16-2011 05:59 PM
by SOMbitch

25

7,834

Generation III Internal Engine

ls1314030f04, ls1340030f04, ls134030f04, nitrous, reliefs, valve

Head pounding please help

txh0tb0i972 on 01-18-2011

01-18-2011 06:11 PM
by 09camaro383

2

799

Generation III Internal Engine

327, ls1tech, lt1, lt1stockvalverelief, lt4, piston, pistons, relief, reliefs, size, sizes, spec, specs, stock, valve

Stock Piston Valve Relief

97pontta on 10-06-2010

10-06-2010 07:23 AM
by RamAir95TA

1

3,118

LT1-LT4 Modifications

hypereutectic, ls1, piston, pistons, pro, reliefs, speed, speedpro, summit, valve, zh1129ct

ZH1129CT Pistons?

Isolde on 05-24-2010

05-27-2010 11:31 PM
by Isolde

1

708

Generation III Internal Engine

cherokee, drop, engine, engines, free, grand, head, hollow, jepp, l92, ls2, ls3, reliefs, stem, stock, valve, valves

Can someone tell me the valve drop on a stock L92 head?

hirdlej on 04-22-2010

05-04-2010 02:49 PM
by LS6

11

6,268

Generation IV Internal Engine

biggest, cam, cc, ccs, l92, ls3, piston, pistons, releif, reliefs, relif, relife, size, slp, stock, valve

valve relief cc of stock L92 pistons

Ramairbird on 10-22-2008

04-30-2010 07:05 PM
by Beaflag VonRathburg

3

5,029

Generation IV Internal Engine

121, 408w, compression, custom, dish, dished, dome, domed, flat, gen, high, nitrous, piston, pistons, reliefs, top, valve

Dome vs. Flat-top Piston

WYD-01 on 02-24-2010

02-26-2010 02:00 AM
by PowerShift408

8

19,067

Generation III Internal Engine

400, 550hp, biggest, block, bore, boring, cylinder, head, heads, l92, ls1, ls3, reliefs, small, stock, valve, valves

L92 heads on LS1 block

Guacamayo on 10-29-2007

10-24-2009 03:27 PM
by NemeSS

15

18,289

Generation III Internal Engine

2cc, compression, drop, ls1, reliefs, valve

how much compression is lost by flycutting

6-Speed Terror on 10-01-2009

10-02-2009 11:13 AM
by 6-Speed Terror

6

1,384

Generation III Internal Engine

13, 141, 8cc, com, compression, dome, domed, flycut, formula, l92, ls7, pistons, reliefs, schwanke, shortblock

How to get 14:1 + compression on l92

drewhen on 08-31-2009

09-29-2009 07:47 AM
by briannutter

8

5,756

Generation IV Internal Engine

cam, cutting, diamond, fly, flycutting, isky, largest, ls1, piston, pistons, race, relief, reliefs, tool, tooling, valve

Flycutting guru's come in!!please

wantsum410 on 08-20-2009

08-20-2009 11:21 PM
by 405HP_Z06

11

894

Generation III Internal Engine

factory, heads, k394, l92, ls1, ls1tech, piston, pistons, purpose, racing, reliefs, rods, stock, valve, wiseco, work

L92 Heads and Piston Valve Reliefs

sschoeffler on 04-02-2009

04-24-2009 10:52 AM
by Jason 98 TA

12

2,206

Generation IV Internal Engine

01, 10s, 53, cam, carb, daily, heads, hp, ms3, ported, reliefs, running, trans, valve

ms3 + ported 5.3 heads

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1 2)

PhantomR/T on 04-06-2009

04-09-2009 04:43 PM
by PhantomR/T

24

2,081

Generation III Internal Engine

cuts, cutting, ls1, ms4, relief, reliefs, relifes, valve

ms4 and valve relief cuts

trav00ws6 on 01-09-2009

01-09-2009 05:06 PM
by trav00ws6

5

623

Generation III Internal Engine

205, afr, camaro, heads, ls1, lt1, piston, pistons, relief, reliefs, sbc, stock, valve

AFR head / piston valve relief question

Lonnies Performance on 12-02-2008

12-02-2008 10:34 PM
by kgkern01

2

961

LT1-LT4 Modifications

204, 215, 215cc, 228r, cam, chart, cylinder, dyno, flow, heads, intake, ls1tech, ls2, prc, reliefs, results, size

PRC 215cc Specs, Dyno Info & Videos INSIDE!!

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1 2)

Jason 98 TA on 09-10-2008

10-27-2008 04:07 PM
by Giddswat

38

5,363

Generation III Internal Engine

350, 383, 53, 66, c1h288u, chevy, flat, lift, max, piston, pistons, reliefs, stock, stroker, valve, xe274h

max valve lift flat pistons with valve relief

1BAD_Z28 on 06-14-2008

07-01-2008 07:10 PM
by slone56

12

5,000

Small Block & Big Block Chevy Specific

595598, cam, factory, flat, gm, lq4, ls2, pistons, relief, reliefs, top, valve

LQ4 with 595, 598 Lift. Valve reliefs??????

SUPERWAKE502 on 04-22-2008

04-24-2008 10:04 PM
by SUPERWAKE502

12

1,873

Generation III Internal Engine

88958606, 88958698, air, cnc, crate, engine, gmpp, ls3, ls376480, ly6, price, pulleys, reliefs, specs, valve, vintage

new GMPP LS3 crate engines

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1 2)

325trooper on 12-10-2007

01-18-2008 11:38 AM
by bhop42

27

11,993

Generation IV Internal Engine

clearance, ls1tech, ls7, piston, pistons, relief, reliefs, rwliefs, stock, valve

Why do LS7 Pistons have Valve Reliefs?

Gary Z on 01-05-2008

01-14-2008 08:08 PM
by edcmat-l1

9

3,038

Generation IV Internal Engine

cam, cost, cut, forum, impala, ivo, needed, piston, pistons, price, releifs, relief, reliefs, tops, valve

when do you need to cut valve reliefs in the piston

crazygn on 01-12-2008

01-12-2008 02:25 PM
by JPH

6

7,610

Generation III Internal Engine

346, 402, 4cc, cathedral, diamond, fit, fitting, flat, heads, l92, ls1, pump, reliefs, stroker, top, valve

Diamond flat top valve notches fit L92 heads?

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1 2)

LSwonderfull on 10-21-2007

11-29-2007 10:36 AM
by WizeAss

28

3,447

Generation IV Internal Engine

LS7/L92 aftermarket piston. Help me out pros.

gen3performance on 10-11-2007

10-13-2007 03:59 PM
by gen3performance

5

981

Generation IV Internal Engine

1500hd, 62l, 8292, compression, exhaust, gaskets, head, heads, l92, ls3, quadrasteer, raise, reliefs, specific, thickness, valve

L92--LS3 Compression Difference

RWC on 07-16-2007

07-17-2007 11:17 PM
by RWC

6

2,392

Generation IV Internal Engine

asa, cam, cup, gain, gm, grand, heads, hp, lq9, ls1, ls2, pistons, reliefs, valve, vortec

GM ASA Cam

TransAm Mania on 06-12-2007

06-13-2007 11:05 AM
by Andy1

7

4,393

Generation III Internal Engine

0025, cam, dcr, fit, flycutting, l92, milled, reliefs, spinmonster, valve

L92's P/V clearance and cam choice

Spinmonster on 05-28-2007

05-31-2007 12:48 PM
by Spinmonster

19

2,035

Generation IV Internal Engine

3622, 4010, 64cc, cutting, fly, heads, l92, lq9, ls1, mahle, piston, pistons, reliefs, stock, valve

NEED CAM HELP!!! LQ9, L92, Mahle pistons

Eric Hawkins on 05-07-2007

05-08-2007 07:09 PM
by blue by you

4

1,150

Generation IV Internal Engine

asa, cam, camshaft, ls6, operating, range, reliefs, valve

asa questions

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1 2)

silverbandit0996 on 08-25-2006

01-24-2007 10:35 AM
by bww3588

26

1,701

Generation III Internal Engine

Threads Tagged with reliefs