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hoppin up the 258

646 views 3 replies 3 participants last post by  19jeep78 
#1 ·
hey guys im in the process of tryin to get some more power out of my 258. heres what ive done (or ordered) so far.

hedman header
offy dual plane intake manifold
390 holley
comp cam/lifters/timing chain (800-5000 powerband)
new msd coil/accel dist. cap/dual core plug wires

im also going to recondition the head. i think im gonna skip out on the porting (unnecessary on a motor built for torque?), and just do a 3angle valve job and new seals.
what else should i do on the head?
am i on the right track?

thanks for the help guys! i love this forum!
jake
 
#4 ·
thanks for the replies guys.

i really seriously considered the 4.0 head swap, but i heard that the only real hp numbers comes simply from the raise in compression it exhibits. that and i already have the header in the garage and im too lazy to send it back :rofl:

as far as porting goes, i dont really have the cash for it. im sure it helps, but im watching the "cost vs hp" ratio. i dont wanna spend over $200(approx) on the head. can i spend money elsewhere that would benefit? like stiffer valve springs or roller rockers or something? just throwing some things out there..

thanks again,
jake
 
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