Has anyone upgraded there 4.6L engines to a 302 with a stroker kit? If so how much of a driving improvement is there? This past weekend while at Carlisle I notice a 2008 Saleen 302 which had the 4.6L engine but was stroked to 302 in3. Idea worth considering sense I am not going to get rid of my 2010 GT.

 

Been quite a few of them done.

Brenspeed had a pretty good deal on 302 forged stroker shortblocks.

Combine one of those with a pair of ported heads, motorsport cams and if you can stand it, a TVS 2300 supercharger, won't be a lot of 2011+ 5.0's on the street that will have more power.

 

stroker kits themselves do not add but a few hp. They do make things stronger so you can add a ton more power.

 

I'd like to hear from someone who actually has a modular stroker. I have a 06 GT. It has close to 100,000 miles now. The 4.6 is solid--runs great, but somewhere down the road, I'll do an engine swap or rebuild.

I had considered swapping the 4.6 for a 5.0, but a lot of things have to change in order for that to happen. But, I read that FRPP offers a 4.6 stroked to 5.0 (M-6009-A46X) with forged internals. The block sounds like a solid starting point. With the ported 3V heads, hot rod cams, the FRPP 4.6 manifold, and larger throttle body (62MM) the motor N/A, (I'd prefer not to go the blower route), offers a considerable HP gain over the stock 4.6. I saw a video clip from FRPP showing dyno results of 440-HP and 435 ft lbs of torque.

Though parts could get pricey, the engine swap itself should be simple--it's a 4.6, replacing a 4.6. Everything should bolt up just like the stock motor. Additionally, belts, hoses, A/C, alternator--everything from the original 4.6 can carry over.