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 Mar 8, 2011

Jul 6, 2023 09:37 AM
by G Atsma

20

25,243

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 Jan 3, 2004

Mar 8, 2020 06:44 PM
by G Atsma

13

30,675

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 Jul 30, 2009

Oct 25, 2018 03:13 AM
by dreadpirateroberts

83

92,015

Generation III Internal Engine

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

LY6 pistons w/milled l92 heads

01SOMZ28 on Feb 24, 2014

Feb 24, 2014 03:42 PM
by redtan

1

3,666

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 Jul 5, 2013

Jul 8, 2013 09:40 AM
by KingPin1094

14

7,094

Generation III Internal Engine

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

Big cam and 5.3 heads.

mtt14 on Mar 16, 2013

Mar 18, 2013 05:42 PM
by Sales@Tick

7

3,096

Generation III Internal Engine

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

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

sicvenm on Feb 26, 2013

Feb 28, 2013 11:37 AM
by SNLPerformance

8

1,207

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 Apr 28, 2012

Feb 14, 2013 08:14 AM
by coverman66

35

17,263

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 Feb 2, 2013

Feb 3, 2013 06:00 PM
by Mighty Whitey

9

5,075

Generation IV Internal Engine

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

cutting valve reliefs

windmill on Jan 5, 2013

Jan 7, 2013 08:50 PM
by slamminjim

5

1,318

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 Aug 26, 2012

Aug 27, 2012 04:35 PM
by litle88

2

9,831

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 Jul 13, 2012

Jul 15, 2012 01:02 PM
by speedshifter

5

9,003

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 Apr 7, 2012

Apr 8, 2012 05:57 AM
by RezinTexas

1

1,958

Generation III Internal Engine

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

PTV clearance

1badeagle on Oct 31, 2011

Nov 3, 2011 07:16 PM
by 1badeagle

3

1,094

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 Sep 23, 2011

Sep 23, 2011 11:09 AM
by Fast 95 Z28

2

4,108

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 Jun 21, 2011

Jun 22, 2011 05:47 AM
by ausls1

3

5,303

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 May 26, 2011

May 26, 2011 02:57 PM
by xdanny510x

2

1,016

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 May 2, 2011

May 5, 2011 08:56 AM
by speedracer2536

19

1,209

LT1-LT4 Modifications

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

LFA compression?!

Lennart on Mar 9, 2010

Apr 12, 2011 06:01 PM
by slayer performance

4

1,663

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 Apr 2, 2011

Apr 2, 2011 09:30 PM
by FASTFB

2

1,350

Parts Classifieds

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

ex valve ptv clearance LS3

hymey on Mar 22, 2011

Mar 24, 2011 08:06 PM
by hymey

3

1,486

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 Feb 19, 2011

Feb 21, 2011 05:53 PM
by Goldhawg

5

2,275

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 Feb 6, 2010

Feb 16, 2011 05:59 PM
by SOMbitch

25

8,131

Generation III Internal Engine

ls1314030f04, ls1340030f04, ls134030f04, nitrous, reliefs, valve

Head pounding please help

txh0tb0i972 on Jan 18, 2011

Jan 18, 2011 06:11 PM
by 09camaro383

2

833

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 Oct 6, 2010

Oct 6, 2010 07:23 AM
by RamAir95TA

1

3,307

LT1-LT4 Modifications

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

ZH1129CT Pistons?

Isolde on May 24, 2010

May 27, 2010 11:31 PM
by Isolde

1

738

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 Apr 22, 2010

May 4, 2010 02:49 PM
by LS6

11

6,697

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 Oct 22, 2008

Apr 30, 2010 07:05 PM
by Beaflag VonRathburg

3

5,467

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 Feb 24, 2010

Feb 26, 2010 02:00 AM
by PowerShift408

8

20,087

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 Oct 29, 2007

Oct 24, 2009 03:27 PM
by NemeSS

15

18,684

Generation III Internal Engine

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

how much compression is lost by flycutting

6-Speed Terror on Oct 1, 2009

Oct 2, 2009 11:13 AM
by 6-Speed Terror

6

1,749

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 Aug 31, 2009

Sep 29, 2009 07:47 AM
by briannutter

8

6,727

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 Aug 20, 2009

Aug 20, 2009 11:21 PM
by 405HP_Z06

11

1,016

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 Apr 2, 2009

Apr 24, 2009 10:52 AM
by Jason 98 TA

12

2,275

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 Apr 6, 2009

Apr 9, 2009 04:43 PM
by PhantomR/T

24

2,224

Generation III Internal Engine

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

ms4 and valve relief cuts

trav00ws6 on Jan 9, 2009

Jan 9, 2009 05:06 PM
by trav00ws6

5

657

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 Dec 2, 2008

Dec 2, 2008 10:34 PM
by kgkern01

2

1,001

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 Sep 10, 2008

Oct 27, 2008 04:07 PM
by Giddswat

38

5,695

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 Jun 14, 2008

Jul 1, 2008 07:10 PM
by slone56

12

5,503

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 Apr 22, 2008

Apr 24, 2008 10:04 PM
by SUPERWAKE502

12

2,245

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 Dec 10, 2007

Jan 18, 2008 11:38 AM
by bhop42

27

12,239

Generation IV Internal Engine

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

Why do LS7 Pistons have Valve Reliefs?

Gary Z on Jan 5, 2008

Jan 14, 2008 08:08 PM
by edcmat-l1

9

3,348

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 Jan 12, 2008

Jan 12, 2008 02:25 PM
by JPH

6

8,744

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 Oct 21, 2007

Nov 29, 2007 10:36 AM
by WizeAss

28

3,612

Generation IV Internal Engine

LS7/L92 aftermarket piston. Help me out pros.

gen3performance on Oct 11, 2007

Oct 13, 2007 03:59 PM
by gen3performance

5

1,020

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 Jul 16, 2007

Jul 17, 2007 11:17 PM
by RWC

6

2,982

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 Jun 12, 2007

Jun 13, 2007 11:05 AM
by Andy1

7

4,980

Generation III Internal Engine

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

L92's P/V clearance and cam choice

Spinmonster on May 28, 2007

May 31, 2007 12:48 PM
by Spinmonster

19

2,226

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 May 7, 2007

May 8, 2007 07:09 PM
by blue by you

4

1,204

Generation IV Internal Engine

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

asa questions

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1 2)

silverbandit0996 on Aug 25, 2006

Jan 24, 2007 10:35 AM
by bww3588

26

1,830

Generation III Internal Engine

Threads Tagged with reliefs