Howdy all.
So here I am with 3 of 4 Vortec heads being scrap or cores.
1 pair of 906s and 1 pair of 062s. :welcome:
Never had a problem in the past with GT40 heads being boat anchors 1 after the other but it is what it is.
1 pair came with a block that I just had squared and bored. (It's ready to go)
Another pair came on a $50 '98 L31. <--This was a great deal because now I have a "modern" serpentine assembly, powder rods + roller spider & retainer components + I'm tossing the block on CL for sale.
So now I'm on the edge of going the bare import aluminum head route.
I have an LT4 Hot Cam ready to go. (This seemed like a great choice for the cost and the application .500 (1.5 rr) or .525 (1.6 rr) for the Vortecs with a quick spring\lock\retainer mod.
The plan is to use the OEM 5.7" powdered metal rods, a stock 350 crank that has been turned\polished.
Now comes the heads that I had based the build on.
There's an online company that sells remanufactured Vortecs for $175 each shipped with no core fee up front, simply return the cracked heads via pre-paid return postage.
At this point do I trust the remanufactured heads?
What causes these things to be cracked 90% of the time?
Is it because the people overheating the engines just keep on driving them or is it an inherent design issue that's going to happen regardless over time??
Because if it's the latter, I can't see spending $350 + another $500 on springs and Vortec specific intake...
The results thus far have me disappointed. :spank:
So here I am with 3 of 4 Vortec heads being scrap or cores.
1 pair of 906s and 1 pair of 062s. :welcome:
Never had a problem in the past with GT40 heads being boat anchors 1 after the other but it is what it is.
1 pair came with a block that I just had squared and bored. (It's ready to go)
Another pair came on a $50 '98 L31. <--This was a great deal because now I have a "modern" serpentine assembly, powder rods + roller spider & retainer components + I'm tossing the block on CL for sale.
So now I'm on the edge of going the bare import aluminum head route.
I have an LT4 Hot Cam ready to go. (This seemed like a great choice for the cost and the application .500 (1.5 rr) or .525 (1.6 rr) for the Vortecs with a quick spring\lock\retainer mod.
The plan is to use the OEM 5.7" powdered metal rods, a stock 350 crank that has been turned\polished.
Now comes the heads that I had based the build on.
There's an online company that sells remanufactured Vortecs for $175 each shipped with no core fee up front, simply return the cracked heads via pre-paid return postage.
At this point do I trust the remanufactured heads?
What causes these things to be cracked 90% of the time?
Is it because the people overheating the engines just keep on driving them or is it an inherent design issue that's going to happen regardless over time??
Because if it's the latter, I can't see spending $350 + another $500 on springs and Vortec specific intake...
The results thus far have me disappointed. :spank: