Spyder How to make 300 WHP?

[Miguel_Gzlez_Bernal]

Hi, I already owned an Automatic Spyder GST, The engine has just been arrive from machine shop and I wanted to know what I need to make 300-350 whp, head gasket, ARP Bolts or OEM can handle this amount of power.
thanks in advance

 

[DSMPT]

Hi, I already owned an Automatic Spyder GST, The engine has just been arrive from machine shop and I wanted to know what I need to make 300-350 whp, head gasket, ARP Bolts or OEM can handle this amount of power.
thanks in advance

OEM/aftermarket both would handle your desired power if they are new or in good condition. But keep in mind that even if you would use really good expensive aftermarket parts that is supposed to handle 1000+hp, if the engine isn't built properly they would be for nothing.
Whatever the parts, the most important thing is building the engine properly. So if you won't build the engine by yourself, I would recommend to find a reliable engine builder who has a lot of knowledge and experience about 4g63.