305 question.
03-09-2001, 12:21 AM
#1
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Car: Formula
Engine: Pontiac 400
Transmission: T56
Axle/Gears: 4.10
305 question.
I know, I know, there has to be at least 20 people saying why bother with a 305, just get a 350. Well, just because. Anyway, here it goes:
I've got an 89 L03 305 that i am going to get the heads ported and polished with 1.94, 1.50 int, ex valves, milled to 58cc with a comp camps .500, .500 cam. and replaces the whole valvetrain with new parts. I am hoping to see 300 hp at the flywheel. I already have an edelbrock intake, holley 600, headman hedders, HEI dist with accel coil and wires, plus flowmasters. I've let the engine breath as much as possible without changing the internals. Now it's time to change that.
My question is, Will the bottom end hold the HP and tourque from all these mods. It has 70,000 miles with a 700R4 trans. (yes, i know i need a new stall also) Any opinions or advise or even just thoughts would be great. Thanks for all the help so far.
89 RS Conv
-Me to a 5.0 mustang driver. "Yes, you just got beat by a 305 HAHAHAHAHAHAHAHAHAHA"
I've got an 89 L03 305 that i am going to get the heads ported and polished with 1.94, 1.50 int, ex valves, milled to 58cc with a comp camps .500, .500 cam. and replaces the whole valvetrain with new parts. I am hoping to see 300 hp at the flywheel. I already have an edelbrock intake, holley 600, headman hedders, HEI dist with accel coil and wires, plus flowmasters. I've let the engine breath as much as possible without changing the internals. Now it's time to change that.
My question is, Will the bottom end hold the HP and tourque from all these mods. It has 70,000 miles with a 700R4 trans. (yes, i know i need a new stall also) Any opinions or advise or even just thoughts would be great. Thanks for all the help so far.
89 RS Conv
-Me to a 5.0 mustang driver. "Yes, you just got beat by a 305 HAHAHAHAHAHAHAHAHAHA"
03-09-2001, 12:28 AM
#2
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I dont think the 416's will flow enough For that Cam. No matter How ported.
What Cam is it ?
------------------
60 Ranchero - Project ( Money Hole )
85 Sport Coupe LG4 - Daily Driver
Just another Hot Rod kid, or thats what they all tell me.
Livin' the Stereotype
What Cam is it ?
------------------
60 Ranchero - Project ( Money Hole )
85 Sport Coupe LG4 - Daily Driver
Just another Hot Rod kid, or thats what they all tell me.
Livin' the Stereotype
03-09-2001, 01:00 AM
#3
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Car: Formula
Engine: Pontiac 400
Transmission: T56
Axle/Gears: 4.10
This is the cam spec from comp.PART # 08-420-8
LIFT .500 .500
.006 TAPPET LIFT 270 270
VALVE TIMING OPEN CLOSE
AT .006 INT 29 BTDC 61 ABDC
EXH 69 BBDC 21 ATDC
THESE SPECS ARE FOR CAM INSTALLED
AT 106 INTAKE CENTER LINE
INTAKE EXHAUST
DURATION AT .050 215 215
LOBE LIFT .3330 .3330
LOBE SEPARATION 110
Ok, if those heads won't flow how about a set of 85 305 HO heads. Thats whats on the car now.
LIFT .500 .500
.006 TAPPET LIFT 270 270
VALVE TIMING OPEN CLOSE
AT .006 INT 29 BTDC 61 ABDC
EXH 69 BBDC 21 ATDC
THESE SPECS ARE FOR CAM INSTALLED
AT 106 INTAKE CENTER LINE
INTAKE EXHAUST
DURATION AT .050 215 215
LOBE LIFT .3330 .3330
LOBE SEPARATION 110
Ok, if those heads won't flow how about a set of 85 305 HO heads. Thats whats on the car now.
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