What does anybody think of these heads for stock l98 with cam
#1
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Car: 1989 IROC Z L98 G92
Engine: 5.7
Transmission: 700R4
Axle/Gears: 3.27 G92
What does anybody think of these heads for stock l98 with cam
Chevy SBC 350 200cc 64cc Straight Bare Aluminum Cylinder HeadChevy SBC 350 200cc 64cc Straight Bare Aluminum Cylinder Head
Part Number:PH-SB350-200-64SPart Type:Cylinder HeadsCylinder Head Style:BareCylinder Head Material:AluminumCylinder Head Finish:NaturalCombustion Chamber Volume (cc):64 ccCNC-Machined Combustion Chamber:NoIntake Runner Volume (cc):200 ccExhaust Runner Volume (cc):n/aCNC-Machined Intake Runner:NoCNC-Machined Exhaust Runner:NoIntake Port Shape:SquareIntake Port Location:StandardExhaust Port Shape:SquareExhaust Port Location:StandardSpark Plug Style:StraightComp. Valve Job:NoIntake Valves Included:NoIntake Valve Diameter (in):2.020 in.Exhaust Valves Included:No Exhaust Valve Diameter (in):1.600 in. Valve Springs Included:No Damper Spring Included:No Retainers Included:No Locks Included:No Valve Stem Seals Included:No Rocker Arm Studs Included:No Rocker Arms Included:No Rocker Arm Nuts Included:No Guideplates Included:No Valve Cover Mounting Style:Center & Perimeter BoltAccessory Bolt Holes Drilled:Yes Intake Valve Angle:23 deg.Exhaust Valve Angle:23 deg.Valve Guides Included:Yes Valve Guide Material:Bronze Valve Seats Machined:YesValve Seat Machine Style:3-angleValve Seat Material:Ductile iron Steam Holes Drilled:NoOiling Style:Through pushrod Quantity:Sold individually.
Part Number:PH-SB350-200-64SPart Type:Cylinder HeadsCylinder Head Style:BareCylinder Head Material:AluminumCylinder Head Finish:NaturalCombustion Chamber Volume (cc):64 ccCNC-Machined Combustion Chamber:NoIntake Runner Volume (cc):200 ccExhaust Runner Volume (cc):n/aCNC-Machined Intake Runner:NoCNC-Machined Exhaust Runner:NoIntake Port Shape:SquareIntake Port Location:StandardExhaust Port Shape:SquareExhaust Port Location:StandardSpark Plug Style:StraightComp. Valve Job:NoIntake Valves Included:NoIntake Valve Diameter (in):2.020 in.Exhaust Valves Included:No Exhaust Valve Diameter (in):1.600 in. Valve Springs Included:No Damper Spring Included:No Retainers Included:No Locks Included:No Valve Stem Seals Included:No Rocker Arm Studs Included:No Rocker Arms Included:No Rocker Arm Nuts Included:No Guideplates Included:No Valve Cover Mounting Style:Center & Perimeter BoltAccessory Bolt Holes Drilled:Yes Intake Valve Angle:23 deg.Exhaust Valve Angle:23 deg.Valve Guides Included:Yes Valve Guide Material:Bronze Valve Seats Machined:YesValve Seat Machine Style:3-angleValve Seat Material:Ductile iron Steam Holes Drilled:NoOiling Style:Through pushrod Quantity:Sold individually.
#2
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Car: 1989 IROC Z L98 G92
Engine: 5.7
Transmission: 700R4
Axle/Gears: 3.27 G92
Re: What does anybody think of these heads for stock l98 with cam
They are actualy 195 cc not 200 cc.
#3
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Car: 1989 IROC Z L98 G92
Engine: 5.7
Transmission: 700R4
Axle/Gears: 3.27 G92
Re: What does anybody think of these heads for stock l98 with cam
I HAVE THIS CAM LISTED BELOW.
Anyone running Comp Cams 08-501-8 in L98? I have this cam in my 1989 L98 IROC-Z. Right now I am running this cam with ported intake and Magnaflow Dual Cat-back exhaust. This cam really woke up my stock L98. My question is what other Mods can I do that will get me the best bang for the buck. I would like to go with new heads, headers etc. but I don't know what the limitations of the Cam I already have put in are. Anyone have any suggestions on heads, rocker arms or anything else to get some more HP?
Comp Cams 08-501-8
Basic Operating RPM Range: 1,200-5,200
Intake Duration at 050 inch Lift: 212
Exhaust Duration at 050 inch Lift: 218
Duration at 050 inch Lift: 212 int./218 exh.
Advertised Intake Duration: 264
Advertised Exhaust Duration: 269
Advertised Duration: 264 int./269 exh.
Intake Valve Lift with Factory Rocker Arm Ratio: 0.488 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.495 in.
Valve Lift with Factory Rocker Arm Ratio: 0.488 int./0.495 exh.
Lobe Separation (degrees): 112
Anyone running Comp Cams 08-501-8 in L98? I have this cam in my 1989 L98 IROC-Z. Right now I am running this cam with ported intake and Magnaflow Dual Cat-back exhaust. This cam really woke up my stock L98. My question is what other Mods can I do that will get me the best bang for the buck. I would like to go with new heads, headers etc. but I don't know what the limitations of the Cam I already have put in are. Anyone have any suggestions on heads, rocker arms or anything else to get some more HP?
Comp Cams 08-501-8
Basic Operating RPM Range: 1,200-5,200
Intake Duration at 050 inch Lift: 212
Exhaust Duration at 050 inch Lift: 218
Duration at 050 inch Lift: 212 int./218 exh.
Advertised Intake Duration: 264
Advertised Exhaust Duration: 269
Advertised Duration: 264 int./269 exh.
Intake Valve Lift with Factory Rocker Arm Ratio: 0.488 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.495 in.
Valve Lift with Factory Rocker Arm Ratio: 0.488 int./0.495 exh.
Lobe Separation (degrees): 112
#4
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Re: What does anybody think of these heads for stock l98 with cam
Those heads are too big. Especially for a TPI which favors efficiency over size. I have a 383 with an insanely ported TPI, and I'm only running 180cc. A purpose built 350, with every part hand picked to rev high and flow, could use those heads. A good ole street 350, especially a TPI?? Too big. I wouldn't look bigger than 180cc unless you know exactly HOW and WHY you're gonna build that motor.
As for mods, exhaust should be a given, as well as some tuning. Also, look into a gear change and a torque converter. That'll do more than the cam did.
As for heads/HP...what are your goals? How often do you drive the car? How much can you do yourself? What's your budget?
As for mods, exhaust should be a given, as well as some tuning. Also, look into a gear change and a torque converter. That'll do more than the cam did.
As for heads/HP...what are your goals? How often do you drive the car? How much can you do yourself? What's your budget?
#5
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Re: What does anybody think of these heads for stock l98 with cam
That cam you chose is pretty similar to the zz4 cam I was running. I had a mildly ported TPI, full exhaust, tuning, a 3.27 gear and a 2200 stall and the car was an absolute blast. Not modern day LS/Coyote fast, but still pretty fun.
#6
Supreme Member
iTrader: (20)
Re: What does anybody think of these heads for stock l98 with cam
I had the next size up cam from that in a stock rebuilt L98. Ran good. Pretty good idle and made ok power. Stock heads and intake kill potential.
Who makes those heads? The ph-sbc350 part number makes me think proheader but not sure. If proheader they are decent castings. I'd get them bare and have a shop install valves and good springs for the cam
Ultimately you NEED an intake upgrade to see any real gains. Cam and heads on stock intake wont do a whole lot for the money. It will pick up but alot left on table
Who makes those heads? The ph-sbc350 part number makes me think proheader but not sure. If proheader they are decent castings. I'd get them bare and have a shop install valves and good springs for the cam
Ultimately you NEED an intake upgrade to see any real gains. Cam and heads on stock intake wont do a whole lot for the money. It will pick up but alot left on table
#7
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Car: 1989 IROC Z L98 G92
Engine: 5.7
Transmission: 700R4
Axle/Gears: 3.27 G92
Re: What does anybody think of these heads for stock l98 with cam
Those heads are too big. Especially for a TPI which favors efficiency over size. I have a 383 with an insanely ported TPI, and I'm only running 180cc. A purpose built 350, with every part hand picked to rev high and flow, could use those heads. A good ole street 350, especially a TPI?? Too big. I wouldn't look bigger than 180cc unless you know exactly HOW and WHY you're gonna build that motor.
As for mods, exhaust should be a given, as well as some tuning. Also, look into a gear change and a torque converter. That'll do more than the cam did.
As for heads/HP...what are your goals? How often do you drive the car? How much can you do yourself? What's your budget?
As for mods, exhaust should be a given, as well as some tuning. Also, look into a gear change and a torque converter. That'll do more than the cam did.
As for heads/HP...what are your goals? How often do you drive the car? How much can you do yourself? What's your budget?
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#8
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Car: 1989 IROC Z L98 G92
Engine: 5.7
Transmission: 700R4
Axle/Gears: 3.27 G92
Re: What does anybody think of these heads for stock l98 with cam
l drive to car shows and on weekends. Looking for 300 to 400 hp TRYING to stay budget friendly.. I just saw these heads for like 300 dollars a pair and thought may be good deal. I did just order some headers. I am now debating on having stock heads redone or buy new ones. Car starting to burn oil bad @ start up.
Brand:Procomp ElectronicsPart Number:PCE316.1017Part Type:HeadersHeader Style:Performance Mid LengthHeader Material:Stainless SteelHeader Finish:NaturalWeld-Up:NoPrimary Tube Diameter (in):1 5/8 in.Collector Attachment:Bolt OnCollector Diameter:2.5 in.Cylinder Head Port Shape:OvalTuned:NoPrimary Tube Gauge:16 GaugeFlange Style:Standard OEMFlange Thickness (in):3/8 in.Bolts/Studs Included:NoGaskets Included:NoReducers Included:NoY-Pipe Included:NoMotor Mounts Included:NoTransmission Mount Included:NoQuantity:Sold as a Set
#9
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iTrader: (3)
Re: What does anybody think of these heads for stock l98 with cam
Ya know....I know it's not always a popular option, but I'm a huge fan of running vortec heads on a 350 TPI motor. You can find heads used on the cheap, and with a little work, they'll handle that cam no problem. There's a vortec TPI manifold in the classifieds right now too. Not gonna make insane dyno numbers, but it'll make one heck of a torquey street motor. Their power under the curve is a perfect compliment to a bolt on TPI motor.
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