shaffervw

have a 92 hatch with a 306....h-beam rods, flat top pistons, b series cam, 1.7 roller rockers, 70mm throttle body, 75mm mass air, and was told it had a eagle 306 crank but dont even know if they exist. i am buying some trick flow heads and intake tomm and i heard some stuff about tf heads eating valve guides and i seen that improper pushrod length causes that....wondering if anybody can tell me how to measure for what size i need or if anybody can tell me what size i need??

shaffervw

was also wondering if anybody had any input on a better cam....i dont want to go custom i just want to buy one!

ttocs

I read about those as well when I bought my TF head 2 months ago. From what I understand it was an early problem that they have now fixed. Not sure how old your is but when I found them new at summit for $1k I jumped on them. Just need to find a sale on some rockers, pushrods and a cam

nacanitihs

be very careful about PTV clearance running flat top pistons and twisted wedge heads. do your pistons have larger valve releafs in them?

and which series heads and intake? that will help us better determine your cam choice. also do you plan on any kind of power adder?

shaffervw

i have the 170 heads-part no.tfs-51400004 and the intake is the track heat part no. tfs-515b0002. the guy i bought it off of said my best bet would be a custom ground cam but if he was gonna buy a cam he would go with the trick flow stage one

shaffervw

oh and yeah i was thinking s/c down the road!

nacanitihs

tfs stage 2

302army seems to enjoy that one

nitrous_bob

double check your numbers and call trickflow.

they advertise their cams based on using 1.6 rockers. 1.7's might not work