chances of blowing up?
Thread Starter
Teching In
Joined: Nov 2007
Posts: 38
Likes: 0
chances of blowing up? if i were to install:
edelbrock 2012 cam and lifters
Duration at 0.006" Lift: Intake: 278° Exhaust: 288°
Duration at 0.050" Lift: Intake: 204° Exhaust: 214°
Lift at Cam: Intake: 0.280" Exhaust: 0.295"
Lift at Valve: Intake: 0.420" Exhaust: 0.442"
Timing at 0.050" lift: Open Close
Intake: 5° ATDC 29° ABDC
Exhaust: 44° BBDC 10° BTDC
Centerlines: Lobe Separation - 112° Intake Centerline - 107°
with proform aluminum 1.5,1.6 rocker arms, will the bottom end blow?
a friend says hes done it. it will be installed in a stock 305.
edelbrock 2012 cam and lifters
Duration at 0.006" Lift: Intake: 278° Exhaust: 288°
Duration at 0.050" Lift: Intake: 204° Exhaust: 214°
Lift at Cam: Intake: 0.280" Exhaust: 0.295"
Lift at Valve: Intake: 0.420" Exhaust: 0.442"
Timing at 0.050" lift: Open Close
Intake: 5° ATDC 29° ABDC
Exhaust: 44° BBDC 10° BTDC
Centerlines: Lobe Separation - 112° Intake Centerline - 107°
with proform aluminum 1.5,1.6 rocker arms, will the bottom end blow?
a friend says hes done it. it will be installed in a stock 305.
That is a very small cam you shouldn't have problems with anything, check to see the max lift on your stock springs and if they are old consider getting the matching spring set.
The only thing that I can for see as being a problem is your Proform rockers. Which style of ones are you looking at? Roller tip (they make two different versions of the roller tip) or full body roller?
Thread Starter
Teching In
Joined: Nov 2007
Posts: 38
Likes: 0
Heres the specs on the rockers:
Part Number: PRO-66920C
Rocker Arm Mounting Style: Stud
Rocker Arm Ratio: 1.5, 1.6
Rocker Arm Style: Full roller
Stud Size: 3/8 in.
Shims Included: No
Rocker Arm Material: Aluminum
Self-Aligning: No
Rocker Arm Body Style: Standard
Rocker Arm Nut Style: Polylock
Rocker Arm Finish: Blue anodized
Part Number: PRO-66920C
Rocker Arm Mounting Style: Stud
Rocker Arm Ratio: 1.5, 1.6
Rocker Arm Style: Full roller
Stud Size: 3/8 in.
Shims Included: No
Rocker Arm Material: Aluminum
Self-Aligning: No
Rocker Arm Body Style: Standard
Rocker Arm Nut Style: Polylock
Rocker Arm Finish: Blue anodized
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Heres the specs on the rockers:
Part Number: PRO-66920C
Rocker Arm Mounting Style: Stud
Rocker Arm Ratio: 1.5, 1.6
Rocker Arm Style: Full roller
Stud Size: 3/8 in.
Shims Included: No
Rocker Arm Material: Aluminum
Self-Aligning: No
Rocker Arm Body Style: Standard
Rocker Arm Nut Style: Polylock
Rocker Arm Finish: Blue anodized
Part Number: PRO-66920C
Rocker Arm Mounting Style: Stud
Rocker Arm Ratio: 1.5, 1.6
Rocker Arm Style: Full roller
Stud Size: 3/8 in.
Shims Included: No
Rocker Arm Material: Aluminum
Self-Aligning: No
Rocker Arm Body Style: Standard
Rocker Arm Nut Style: Polylock
Rocker Arm Finish: Blue anodized
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Teching In
Joined: Nov 2007
Posts: 38
Likes: 0
so is it a bad idea to just install this cam and lifters w/o replacing the timing chain and other things. im thinkin of just doing the cam swap for now and replacing the rods rockers seat springs etc later. good idea bad idea?
Your stock cam lift is .390 and .410, lift is what will kill a rocker and that lift will not kill even a shitty proform, which BTW I think is a total waste of money. You're going to see no difference at all using those rockers on that set up, you'd be better off with stock and the money in your pocket or spent on springs or something else.
