what will i run??
Thread Starter
Supreme Member
Joined: Aug 2005
Posts: 3,004
Likes: 4
From: Yellowknife, NWT, Canada
Car: 84 Z28
Engine: 357
Transmission: TH-350C
Axle/Gears: 3.43
what will i run??
just another "what will i run" post 
Heres specs:
84 z28
350ci Chev block, not 100% sure of year maybe '74
Edelbrock performer: cam, EPS intake, 600cfm carb
14" open element K&N
Hedman full length headers and dual lake pipes(no cats or mufflers)
TH-350 w/shift kit
4.11 rear end
And i wonder if anyones got a rough estimate of HP

Heres specs:
84 z28
350ci Chev block, not 100% sure of year maybe '74
Edelbrock performer: cam, EPS intake, 600cfm carb
14" open element K&N
Hedman full length headers and dual lake pipes(no cats or mufflers)
TH-350 w/shift kit
4.11 rear end
And i wonder if anyones got a rough estimate of HP
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Joined: Aug 2004
Posts: 1,327
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Car: 1987 IROC-Z Camaro
Engine: 5.7 350 TPI - SLP Runners, AFPR, MSD Goodies
Transmission: 700R4 - Shift Kit, Corvette Servo
Axle/Gears: BW 9 bolt, 3.27s
Im going to have to say anywhere from low low 14s to low 15s. If that motor is a 74 spec, it will prob have lower compression.
Thread Starter
Supreme Member
Joined: Aug 2005
Posts: 3,004
Likes: 4
From: Yellowknife, NWT, Canada
Car: 84 Z28
Engine: 357
Transmission: TH-350C
Axle/Gears: 3.43
well when i had the engine apart a couple weeks ago i looked up the casting number on the block on some guys home jobbie website and it said a '74 but i was also told by one of the guys that was around when the engine swap took place (before i got it) that it was a '63 so i really have no clue
Is their any good sites anyone knows of that i can look up my casting number??
Edit: also, my 0-100km/h is 5sec
Is their any good sites anyone knows of that i can look up my casting number??
Edit: also, my 0-100km/h is 5sec
Last edited by 84z28350; Aug 22, 2005 at 04:33 PM.
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Joined: Jul 1999
Posts: 1,011
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From: Saskatoon, Saskatchewan, Canada
Car: 86 Trans Am
Engine: 406
Transmission: TH350, 4200
Axle/Gears: Moser 9", 3.89
Thread Starter
Supreme Member
Joined: Aug 2005
Posts: 3,004
Likes: 4
From: Yellowknife, NWT, Canada
Car: 84 Z28
Engine: 357
Transmission: TH-350C
Axle/Gears: 3.43
aite, thx
i guess the other site was somewhat correct.
Casting# 3970014 70-76 350ci
So i guess this would most likely make it a low compression engine right??
hmmmm im thinking blower...
i guess the other site was somewhat correct.
Casting# 3970014 70-76 350ci
So i guess this would most likely make it a low compression engine right??
hmmmm im thinking blower...
Joined: Jun 2001
Posts: 8,028
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From: DC Metro Area
Car: 87TA 87Form 71Mach1 93FleetWB 04Cum
That’s a loaded question… in theory those parts could support something in the 400-450bhp range if _everything_ was done perfectly/tuned perfectly… that would make for a pretty fast f-body. Real world, average condition parts, average monkey assembling them and tuning them… well, I’ve seen a lot of similar setups run slower then a stock L98…
Thread Starter
Supreme Member
Joined: Aug 2005
Posts: 3,004
Likes: 4
From: Yellowknife, NWT, Canada
Car: 84 Z28
Engine: 357
Transmission: TH-350C
Axle/Gears: 3.43
well i doubt i could get 350+ hp out of the block i have, the rods are already getting loose and to top it off its only a 2 bolt.
Earlier today i ordered in a rebuilt block w/rotating assy, its a 4bolt so less chance of me dropping the crank on the pavement
Earlier today i ordered in a rebuilt block w/rotating assy, its a 4bolt so less chance of me dropping the crank on the pavement

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