i have $1200 and a 85 z28 with a 305
Thread Starter
Junior Member
Joined: Jul 2010
Posts: 26
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From: Celina, tx
Car: 85 z28
Engine: 305 4bbl
Transmission: 700r4
i have $1200 and a 85 z28 with a 305
what should i do i have $1200 i really don't wanna pull the motor it runs fine i just want to make around 300 to 350 hp whats yalls opinion. thanks
Supreme Member
Joined: Mar 2009
Posts: 1,402
Likes: 3
From: Sussex County, NJ
Car: 1994 Z28
Engine: 355 LT1
Transmission: T56
Axle/Gears: 3.42
Re: i have $1200 and a 85 z28 with a 305
You can achieve that power with vortec heads, beehive springs/retainer kit, and a cam on a 305. Still keep it very streetable too.
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Joined: Jan 2010
Posts: 454
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From: Bradenton FL
Car: CAMARO,GMC SUBURBAN DUALLY,RACEBOA
Engine: 305 TBI( soon 383),350Vortec
Transmission: 700 turbo
Re: i have $1200 and a 85 z28 with a 305
Senior Member
Joined: Jun 2009
Posts: 511
Likes: 0
From: Evansville, IN
Car: 1983 Z28
Engine: Forged 355
Transmission: 700r4
Axle/Gears: 2.73
Re: i have $1200 and a 85 z28 with a 305
LSx for $2000 probably not. But I know of a build for a 350 with vortec heads and lt4 hot cam that is costs $1150, but you would need a lot more money to buy everything to swap over, and all the extra things to add up.
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Thread Starter
Junior Member
Joined: Jul 2010
Posts: 26
Likes: 0
From: Celina, tx
Car: 85 z28
Engine: 305 4bbl
Transmission: 700r4
Re: i have $1200 and a 85 z28 with a 305
i was going to buy some interior things but that can wait will 1600 get everthing i need for the 350 swap
Supreme Member
Joined: Jan 2009
Posts: 1,126
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From: Columbus Ohio
Car: 91 Z28,64ImpalaSS4094spd,67 Galaxy
Engine: Dart 415Profiler hd,cmprlrs,Hlly750
Transmission: Built 700R4, 3200 stall
Axle/Gears: 3:89 Moser 9"
Re: i have $1200 and a 85 z28 with a 305
heads, cam and headers...
Joined: Dec 2007
Posts: 1,924
Likes: 12
From: Minnesota
Car: 84 camaro, 88 trans am, 98 camaro
Engine: Modded , stock, LSX modded
Transmission: 700r4, 700r4, t-56
Axle/Gears: 327, 308, 373
Re: i have $1200 and a 85 z28 with a 305
What fuel system?
Member
Joined: Apr 2010
Posts: 245
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From: sussex county, NJ
Car: 84 Z28 / 11 genesis coupe
Engine: 355/210 heads/275deh/Proform 750 DP
Transmission: 700r4/B&M 2400
Axle/Gears: 02, allu.axle, 3.42, posi
Re: i have $1200 and a 85 z28 with a 305
1600 can put you verry close, you can start by buying the block and the rotating assembly and then buy the rest as you can, that's how i did mine
Thread Starter
Junior Member
Joined: Jul 2010
Posts: 26
Likes: 0
From: Celina, tx
Car: 85 z28
Engine: 305 4bbl
Transmission: 700r4
Re: i have $1200 and a 85 z28 with a 305
thats what i think im going to do its just i dont have the equipment to the swap but ill just worry about that when i get thier!
Senior Member
Joined: Jun 2009
Posts: 511
Likes: 0
From: Evansville, IN
Car: 1983 Z28
Engine: Forged 355
Transmission: 700r4
Axle/Gears: 2.73
Re: i have $1200 and a 85 z28 with a 305
Everything in this build will cost me right at $1300. If you get a smaller cam and don't do any head work to the vortecs, you could have a really cheap build like that.
Thread Starter
Junior Member
Joined: Jul 2010
Posts: 26
Likes: 0
From: Celina, tx
Car: 85 z28
Engine: 305 4bbl
Transmission: 700r4
Re: i have $1200 and a 85 z28 with a 305
Senior Member
Joined: Jun 2009
Posts: 511
Likes: 0
From: Evansville, IN
Car: 1983 Z28
Engine: Forged 355
Transmission: 700r4
Axle/Gears: 2.73
Re: i have $1200 and a 85 z28 with a 305
I have a list on notepad, let me copy paste it, it also has a few prices idk how accurate though.
///////////MOTOR NOTES\\\\\\\\\\\
86+ 350 Vortec SBC (Powdered metal rods, good for 500HP
96-02 Vortec Heads
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[Shortblock]
Vortec 350 SBC longblock - $125 (1-piece RMS)
Stock 350 Crankshaft
Stock 5.7 Powdered Metal Connecting Rods
Speed Pro Z8KH423NCP30 Hypereutectic Flat-top Piston and Ring kit - $165
Boring block .030" over, pressing pistons on rods, install cam bearings - $150
24502586 - GM Performance LT4 Hot Cam Hydraulic Roller - $225
Accel Large cap HEI - free
Accel 8mm wires - free
Flowtech Shorty Headers - free
Custom Y-pipe - free
Flowmaster
================================================================
12499224 - GM LS6 beehive valve springs - $65
787-16 - COMP Cams Steel Valve Spring Retainers - $52
648-16 - COMP Cams Race Valve Locks - $22
SEALED POWER Part # ST2015 Valve stem seals - $1.84 ea - $30
Machining Screw in studs - $5 ea x16 - $80
Studs - $1 ea x16 - $16
Guide plates - $25
Edelbrock 9630 Hardened Steel Pushrods - $30
Edelbrock 7116 Performer RPM Vortec Intake Manifold - $188
Valve cover 4bolt adapter - $110
1.5:1 Roller rockers - Free
LS2 Timing chain 12586482 - $35
Autozone SBC gasket set - $64
Tell me if anything is wrong, I also need to update several things.
///////////MOTOR NOTES\\\\\\\\\\\
86+ 350 Vortec SBC (Powdered metal rods, good for 500HP
96-02 Vortec Heads
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[Shortblock]
Vortec 350 SBC longblock - $125 (1-piece RMS)
Stock 350 Crankshaft
Stock 5.7 Powdered Metal Connecting Rods
Speed Pro Z8KH423NCP30 Hypereutectic Flat-top Piston and Ring kit - $165
Boring block .030" over, pressing pistons on rods, install cam bearings - $150
24502586 - GM Performance LT4 Hot Cam Hydraulic Roller - $225
Accel Large cap HEI - free
Accel 8mm wires - free
Flowtech Shorty Headers - free
Custom Y-pipe - free
Flowmaster
================================================================
12499224 - GM LS6 beehive valve springs - $65
787-16 - COMP Cams Steel Valve Spring Retainers - $52
648-16 - COMP Cams Race Valve Locks - $22
SEALED POWER Part # ST2015 Valve stem seals - $1.84 ea - $30
Machining Screw in studs - $5 ea x16 - $80
Studs - $1 ea x16 - $16
Guide plates - $25
Edelbrock 9630 Hardened Steel Pushrods - $30
Edelbrock 7116 Performer RPM Vortec Intake Manifold - $188
Valve cover 4bolt adapter - $110
1.5:1 Roller rockers - Free
LS2 Timing chain 12586482 - $35
Autozone SBC gasket set - $64
Tell me if anything is wrong, I also need to update several things.
Last edited by TheMonster; Dec 20, 2010 at 12:09 AM.
Supreme Member
Joined: Mar 2009
Posts: 1,402
Likes: 3
From: Sussex County, NJ
Car: 1994 Z28
Engine: 355 LT1
Transmission: T56
Axle/Gears: 3.42
Re: i have $1200 and a 85 z28 with a 305
all you need really is a basic set of sockets/wrenches, torque wrench, cam wheel, and an engine stand. I know a few people with engine stands and I own one; and I am more then happy to let others borrow it. You shouldn't have to much difficulty finding someone with one.
Supreme Member
Joined: Mar 2009
Posts: 1,402
Likes: 3
From: Sussex County, NJ
Car: 1994 Z28
Engine: 355 LT1
Transmission: T56
Axle/Gears: 3.42
Thread Starter
Junior Member
Joined: Jul 2010
Posts: 26
Likes: 0
From: Celina, tx
Car: 85 z28
Engine: 305 4bbl
Transmission: 700r4
Re: i have $1200 and a 85 z28 with a 305
im excited ill post pic when i start the build
Thread Starter
Junior Member
Joined: Jul 2010
Posts: 26
Likes: 0
From: Celina, tx
Car: 85 z28
Engine: 305 4bbl
Transmission: 700r4
Re: i have $1200 and a 85 z28 with a 305
Thread Starter
Junior Member
Joined: Jul 2010
Posts: 26
Likes: 0
From: Celina, tx
Car: 85 z28
Engine: 305 4bbl
Transmission: 700r4
Re: i have $1200 and a 85 z28 with a 305
so looks like im just going to build up the 305 for now vortec heads, intake, cam, headers and a new carb so wish me luck any idea on what kinda cam i should use thanks, and im going with e fans also
Member
Joined: Aug 2009
Posts: 332
Likes: 0
From: AZ
Car: 1978 Chevrolet impala
Engine: 350ci 300hp/356tq pace crate
Transmission: 700r4
Axle/Gears: 3.42 Yukon posi
Re: i have $1200 and a 85 z28 with a 305
You could always just purchase a craigslist or junkyard block and freshen it up. No need to get all those brand new guts, stock rods and pistons (if they are straight) should do you just fine.
EDIT: With vortec heads your compression might be hurting a bit. Consider getting them milled? With Vortec heads the factory lift is limited. Right around .450-.470 according to most folks. Unless you're looking for more, I've seen the LT1-LT4 factory cams most commonly recommended. You'll have trouble finding anything in the aftermarket that caters to a lobe that small (believe me, I've looked). There is a GM camshaft on sale right now that probably lopes and chops in a really fun way, but it's pretty crap as far as performance goes. http://www.summitracing.com/parts/NAL-14097395/
Other than that, LT1, LT4, L98 all offer slightly bigger cams. I think I paid 30 bucks for my L98.
If you want bigger lift, there are several available options in the form of spring kits and headwork. Ask and ye shall receive.
EDIT: With vortec heads your compression might be hurting a bit. Consider getting them milled? With Vortec heads the factory lift is limited. Right around .450-.470 according to most folks. Unless you're looking for more, I've seen the LT1-LT4 factory cams most commonly recommended. You'll have trouble finding anything in the aftermarket that caters to a lobe that small (believe me, I've looked). There is a GM camshaft on sale right now that probably lopes and chops in a really fun way, but it's pretty crap as far as performance goes. http://www.summitracing.com/parts/NAL-14097395/
Other than that, LT1, LT4, L98 all offer slightly bigger cams. I think I paid 30 bucks for my L98.
If you want bigger lift, there are several available options in the form of spring kits and headwork. Ask and ye shall receive.
Last edited by Grumbles; Dec 24, 2010 at 04:54 AM.
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Joined: Apr 2008
Posts: 806
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From: Somerset, New Jersey
Car: 95 Z85 S10, 99 Formula
Engine: 4.3 CPI , LS1
Transmission: NV3500, T56
Axle/Gears: 3.08, 3.42
Re: i have $1200 and a 85 z28 with a 305
i might wait and save some more so when you build it up, you can do it right. look around for a big block or even a 350. i'm sure you can find one from a junkyard thats driveable if you really want something now.
look into 5.3L LSx swaps. those engines are a dime a dozen and give good power
look into 5.3L LSx swaps. those engines are a dime a dozen and give good power
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