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New Cam-Evaluation Please

Old Dec 19, 2017 | 08:37 PM
  #1  
Green89IROC305's Avatar
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Joined: Jun 2006
Posts: 463
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From: Milford, OH
Car: 91 Z28 - using 87 electricals
Engine: 383 HSR EBL
Transmission: 700R4 - Stage 3 Fixed Pressure
Axle/Gears: GM 3.08 POSI
New Cam-Evaluation Please

Hey All,

I am having my 87 TPI drive train dropped into an 88 donor body as the 87 is a lost cause .

Anyway, they are going to polish up the intake and I was thinking this was a good time to swap the cam.

This is the cam I was looking at on Summit Here

I am not 100 percent sure what is in mine as it is a non stock 350 70's reproduction crate motor(came with the car).

Near as I can tell these are the specs of the motor based only on head casting numbers. The motor is using the stock TPI for a 350.

Horsepower: 249 HP @ 5,000 RPM
Torque: 304 Ft/Lbs @ 3,500 RPM
Compression Ratio: 8.50 to 1
Block: 4 – Bolt, 2 Piece Rear Seal, 4.000” Bore
Crankshaft: Cast Nodular 3.480” Stroke
Heads: Cast Iron, 76cc
Valves: 1.940” / 1.500”
Camshaft lift: 0.390” / 0.410” Hydraulic
Duration @ 0.050”: 195° / 202°

Could someone with more experience with cams let me know if my choice will net any performance? I am not looking for anything crazy, just better than what I have.

Thanks.
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Old Dec 19, 2017 | 09:12 PM
  #2  
86LG4Bird's Avatar
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Posts: 1,390
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From: Bright, IN
Car: '86 Bird, 96 ImpalaSS, 98 C1500XCab
Engine: LG4, LT1, L31
Transmission: 700R4, 4L60E, 4L60E
Axle/Gears: 3.73 Tors, 4.88 spool, 3.73 Eaton
Re: New Cam-Evaluation Please

yes, it will make a big difference in performance.
Just check to make sure you have retainer-to-seal clearance on those heads at the higher valve lift.
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Old Dec 19, 2017 | 11:00 PM
  #3  
Green89IROC305's Avatar
Thread Starter
Member
 
Joined: Jun 2006
Posts: 463
Likes: 9
From: Milford, OH
Car: 91 Z28 - using 87 electricals
Engine: 383 HSR EBL
Transmission: 700R4 - Stage 3 Fixed Pressure
Axle/Gears: GM 3.08 POSI
Re: New Cam-Evaluation Please

Originally Posted by 86LG4Bird
yes, it will make a big difference in performance.
Just check to make sure you have retainer-to-seal clearance on those heads at the higher valve lift.
Will do thanks!
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