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Thread: 94 z28 camaro
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01-21-2018, 05:05 PM #1
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94 z28 camaro
Am new to this but am looking to rebuilt my z28 it has a real bad blow by so am looking to buy some some parts and could use some help with choosing the right parts for my build
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01-21-2018, 08:16 PM #2
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Give us some more info. Goals, budget, what it has already?
Originally Posted by stevenrogers89
2012 Sierra - 5.3, Summit "Stage 1" Truck Cam
1994 Jimmy - LS? LT? 4wd? AWD? Time? Money?
1994 Formula - 5.3, Terminator X, Billet VS7875, "Best Cam", T56, QP 9"
Formula Build Thread
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01-22-2018, 09:11 AM #3
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You're going to have to open it up and inspect the rings, pistons, and cylinder walls to determine the specific cause of the blowby.
SOLD - GONE TO A (VERY) GOOD HOME ! - 94 Formula A3+1: 381ci forged stroker - Callies Stealth, Oliver 5.85 billet rods, BME nitrous pistons / CNC LT4 heads / CC solid roller / TH400+GearVendors OD / 4.11 Strange 12-bolt / 300-shot N2O / Spohn Suspension / roll bar / MoTeC M48 Pro engine management system /a few other odds 'n ends.
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01-23-2018, 07:51 PM #4
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its t56 has complete comp cam kit and ported heads with headers 3'stainless exhaust but ill have around 2500 to 3000 budget wish just looking to try get around 350 to 400 hp but the motor was suppose to have been spotless inside no ring wear what so ever and on my way home i started having optispark problem and now after i got it back running now i have a bad blowbye
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01-24-2018, 12:28 AM #5
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What injectors and if so was it tuned for them? Any info on who ported the heads and cam specs.
Sent from my iPhone using Tapatalk2012 Sierra - 5.3, Summit "Stage 1" Truck Cam
1994 Jimmy - LS? LT? 4wd? AWD? Time? Money?
1994 Formula - 5.3, Terminator X, Billet VS7875, "Best Cam", T56, QP 9"
Formula Build Thread
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01-24-2018, 10:49 AM #6
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Never take anyone's word on what they say the engine has in it or condition. You need to determine cause of blowby before you make any choices.
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01-24-2018, 08:14 PM #7
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I. can't. do. this. anymore. without. punctuation
Sent from my SM-N950U using Tapatalk2021 Charger Scat 392
1994 Firebird Formula 381 stroker - Carrying the torch! - 9.90 @ 134.3mph on a 200 shot
The wrench/driver for LTConvert's 94 Z28- Ellwein 383/LE Trickflows/ D1SC / CPT Ultra Pro Race 4L60E
10.78 @ 125mph. Shooting for 9.99 for Frank Cahall!
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01-25-2018, 09:25 PM #8
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Didn't these things have issues with valve stem seals blowing by pretty bad? Either way I would do some compression testing before I go to far diagnosing.
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01-25-2018, 10:44 PM #9
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how do you know you even have blow by? I thought we fried a heads cam boosted stock bottom end because I was getting puff puff puff out of the breather......
The Pcv valve was stuck.....I tore a whole car apart that was then down half a year for a pcv valve...
Sent from my SM-N950U using Tapatalk2021 Charger Scat 392
1994 Firebird Formula 381 stroker - Carrying the torch! - 9.90 @ 134.3mph on a 200 shot
The wrench/driver for LTConvert's 94 Z28- Ellwein 383/LE Trickflows/ D1SC / CPT Ultra Pro Race 4L60E
10.78 @ 125mph. Shooting for 9.99 for Frank Cahall!
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01-29-2018, 08:45 AM #10
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ok i drove the car the other day and found out that 3 of the roller rockers has jumped off and one of the push rods fell down in the head maybe thats what was causing the blow by and loss of power plus it is blowing oil out around the dip stick and front seal can that cause all them prob
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