Author Topic: Project X-Ram  (Read 469 times)

uscrichter

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Project X-Ram
« on: June 11, 2019, 03:48:05 PM »
I was going through some old GM NOS parts I had for years in storage that I though to use on the 302 X-Ram engine I will be building this summer and was wondering if these parts would work and if anyone has used these  type of light weight flywheel and if so did it improve performance? I also found a #140 off road cam that I plan on using and need to find out if that valve spring is correct for it? Thanks in advance.

uscrichter

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Re: Project X-Ram
« Reply #1 on: June 11, 2019, 03:49:43 PM »
The other two pictures didn't go through, here they are!

uscrichter

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Re: Project X-Ram
« Reply #2 on: June 11, 2019, 03:50:21 PM »
Flywheel

BillOhio

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Re: Project X-Ram
« Reply #3 on: June 12, 2019, 02:52:33 AM »
My Z has the 140 cam and springs in it.  They had orange paint on them. If you have the aluminum retainers that were used with the springs, dont use them.  They were prone to cracking and bad things happen.  I was lucky mine survived
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uscrichter

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Re: Project X-Ram
« Reply #4 on: June 12, 2019, 05:58:03 PM »
Great advice on the springs, thanks! has anyone used that flywheel before?

firstgenaddict

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Re: Project X-Ram
« Reply #5 on: September 13, 2019, 03:45:11 PM »
What weight is the flywheel?
The light ones 15-20# are great for racing a 302 however on the street you have to rev them to the moon to get them going. 
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69Z28-RS

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Re: Project X-Ram
« Reply #6 on: September 13, 2019, 08:10:22 PM »
My Z has the 140 cam and springs in it.  They had orange paint on them. If you have the aluminum retainers that were used with the springs, dont use them.  They were prone to cracking and bad things happen.  I was lucky mine survived

If I'm not mistaken, There was an over the counter lightweight titanium retainer that could be used with the HD spring...  I probably have the PN's on a receipt somewhere...
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uscrichter

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Re: Project X-Ram
« Reply #7 on: September 13, 2019, 09:01:40 PM »
I will check the weight this weekend, seems like it would allow for a much more responsive rev and with the off-road cam and all that carburation would be welcomed to get the HP up to the sweet spot quicker? I know the configuration is not friendly as a daily driver,  I plan on using it for shows and weekend fun.

69Z28-RS

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Re: Project X-Ram
« Reply #8 on: September 14, 2019, 03:32:22 AM »
I ran with the lightweight flywheel on my 302 when I rebuilt it back in '76...  It revs quickly, but a little starting 'torque' is lost without the heavy flywheel.
Gary W / 09C 69Z28-RS, 72 B 720 cowl console rosewood tint
69 Corvette convertible, silver/black 350 hp,
60 Corvette white/red, 72 Corvette coupe, '70 Mach I 
90 ZR1 red/red #246, 90 ZR1 white/gray #2466
72 El Camino, '55-'56-'57 Nomads, '55-'57 B/A Sedan