stock GSR block is still in the car with the head on it. and holds perfect compression across 205.

motor has about 105kmiles on it and clean. I have a picture when i placed ARP head studs in it. motor is ran on E85. and solid no smoking nothing and very very strong stock motor

made 415. Im only CONSIDERING SELLING it because i have a built bottom end i can put it.

675.00


i can provide video if needed.

 

wanting more power already

 

thats quite a bit of boost to run through a stock block, but if the numbers are true then its not a big deal.

 

not really. im not shooting for anything major i just have a good opportunity before i get tuned again.

if i don't sell it it's no worries. with the built block i don't plan to make more than 550-600. i really have no desire to make that either I like my motor it runs strong but don't need two blocks


the numbers are true. i have no reason to lie about anything, I dont even have to sell it. it's in my car and if no one buys it i WILL be making over 450whp with it. that's how much i trust it.

that picture is before i even cleaned the deck or anything. i just put ATF to clean the coolant out of the cylinders