Search: Posts Made By: Austin90RS
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Forum: Exhaust
03-03-2014, 08:21 PM
Replies: 3
Views: 585
Posted By Austin90RS

popular long tubes for 3rd gens?????HELP!!!

Hi,after a recent motor swap I come to realize my summit down pipe I had setup with my old vortec 305 no longer fits with my 79 350 in the car.Im looking to setup duals with long tubes, what are some...
01-09-2014, 08:31 PM
Replies: 8
Views: 6,343
Posted By Austin90RS

Re: 79 350 with 76cc heads LOW COMP.!!!

thanks for the input guys, I just pulled the heads off and oil pan and discovered it has the 4 valve relive pistons heads and is a 4 bolt main!!! so that kinda changes my plans for this motor...
Forum: Engine Swap
01-09-2014, 04:22 PM
Replies: 1
Views: 457
Posted By Austin90RS

79 350 with 76cc heads LOW COMP.!!!

So I just picked up a L48 350 out of a 79 z28 yesterday and im starting a list of what im going to get for the rebuild but not sure how to cope with the (76cc) low compression heads, im going with...
01-09-2014, 04:21 PM
Replies: 8
Views: 6,343
Posted By Austin90RS

79 350 with 76cc heads LOW COMP.!!!

So I just picked up a L48 350 out of a 79 z28 yesterday and im starting a list of what im going to get for the rebuild but not sure how to cope with the (76cc) low compression heads, im going with...
10-31-2013, 07:31 PM
Replies: 29
Views: 1,452
Posted By Austin90RS

Re: 1.6 Roller Rockers Shattering!!!HELP!!!

regardless could it be the reason 4 rockers have shattered to pieces?
10-31-2013, 07:24 PM
Replies: 29
Views: 1,452
Posted By Austin90RS

Re: 1.6 Roller Rockers Shattering!!!HELP!!!

side by side they only measured near a 1/4 of an inch didn't seem like they were too big
10-31-2013, 07:03 PM
Replies: 29
Views: 1,452
Posted By Austin90RS

Re: 1.6 Roller Rockers Shattering!!!HELP!!!

That's a good point I didn't think about that
I believe stock is 7.200? I got 7.900's
10-31-2013, 06:47 PM
Replies: 29
Views: 1,452
Posted By Austin90RS

Re: 1.6 Roller Rockers Shattering!!!HELP!!!

appreciate the lesson there prof, im 17 so don't be so quick to judge
and yes I believe VALVE Lift would be affected by simulating a bigger lobe on the cam(cam lift) pushing the rod down more then...
10-31-2013, 05:03 PM
Replies: 29
Views: 1,452
Posted By Austin90RS

Re: 1.6 Roller Rockers Shattering!!!HELP!!!

i didnt get to in depth with it,just figured I could get more out of the cam's lift with longer rods after seeing what some people have done with there head work
10-31-2013, 04:50 PM
Replies: 9
Views: 5,428
Posted By Austin90RS

Re: Proform 1.6 roller rockers breaking!!! help!!!

http://www.jegs.com/i/JEGS+Performance+Products/555/200105/10002/-1 specs for cam
10-31-2013, 04:49 PM
Replies: 29
Views: 1,452
Posted By Austin90RS

Re: 1.6 Roller Rockers Shattering!!!HELP!!!

http://www.jegs.com/i/JEGS+Performance+Products/555/200105/10002/-1 theres the cam specs
10-31-2013, 04:46 PM
Replies: 29
Views: 1,452
Posted By Austin90RS

Re: 1.6 Roller Rockers Shattering!!!HELP!!!

Appreciate the reply, it's a jegs 200105 flat Tappet roughly .460 .480 lift, I checked the rockers and pushrods for any kind of premature wear but nothing, lifters are sound there valley too,...
10-31-2013, 04:34 PM
Replies: 9
Views: 5,428
Posted By Austin90RS

Re: Proform 1.6 roller rockers breaking!!! help!!!

Thanks for reply, Its actually a flat tappet, I put a Jegs 200105 cam in,lifts around .460 in. and 480 ex.
10-31-2013, 03:35 PM
Replies: 9
Views: 5,428
Posted By Austin90RS

Proform 1.6 roller rockers breaking!!! help!!!

So part of my 305 rebuild were ProForm 66927C 1.6 roller rockers arms and slightly bigger pushrods (+.100'' - 7.900) for the cam I got, and now I've gone thru 3 shattered rocker arms, (2 on #8 cyl....
10-31-2013, 03:11 PM
Replies: 29
Views: 1,452
Posted By Austin90RS

1.6 Roller Rockers Shattering!!!HELP!!!

So part of my 305 rebuild were ProForm 66927C 1.6 roller rockers arms and slightly bigger pushrods (+.100'' - 7.900) for the cam I got, and now I've gone thru 3 shattered rocker arms, (2 on #8 cyl....
Forum: Engine Swap
10-22-2013, 09:15 PM
Replies: 32
Views: 4,346
Posted By Austin90RS

Re: Thinking about tossing that 305 boat anchor? THINK AGAIN!!!

I did, im sure im no where near 360 with stock heads and 600DP,all depends on what you get and your budget
Forum: Engine Swap
10-22-2013, 09:11 PM
Replies: 32
Views: 4,346
Posted By Austin90RS

Re: Thinking about tossing that 305 boat anchor? THINK AGAIN!!!

like I said theres different factors, if you go to a carb from tbi, theres 400$ alone for a holley 4150... mine cost me about 800$ in change, 390$ of which went toward a better carb then I originally...
Forum: Engine Swap
10-22-2013, 08:36 PM
Replies: 32
Views: 4,346
Posted By Austin90RS

Re: Thinking about tossing that 305 boat anchor? THINK AGAIN!!!

Im "roughly" going off my current build and similar builds ive seen with almost exact mods expect swapped heads, motor dynoed 400HP

Also any bigger of a cam id need a bigger stall and bigger...
Forum: Engine Swap
10-22-2013, 07:42 PM
Replies: 32
Views: 4,346
Posted By Austin90RS

Thinking about tossing that 305 boat anchor? THINK AGAIN!!!

For those of us with the dreaded lO3 TBI/H.O or even the LB9 TPI 305 that want some more power for there ride on a budget...THERES A WAY WITHOUT SWAPPING!!

After having the same dilemma with my...
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