2 months and 2 blocks later i finally got my 347 built. first block the machinist bored it .004 too far. got into an argument about it it would work or not took it to another machinist and he said he wouldn't run it, so i traded engines with my old mans pickup(let him have my 302 for his). the second block checked out fine so i started the process. notched the block, taped the oil galley holes for pipe plugs, filed the rings(what a PITA), assembled piston to the rods(spiral locks get easy with practice), cleaned, cleaned and cleaned some more then assembled.
parts list new
eagle balanced rotating assembly- sir rods, kb pistons, cast steel crank, balancer and flexplate.
750 dp holley
std. oil pump
main girdle
pushrods
gaskets bearing etc
Recycled from 302:
afr 165 heads
stealth intake
e-303 cam
duraspark dizzy
bbk shorties
tci streetfighter c4 and hughes 3000rpm stall
comp magnum roller tip diecast steel rockers
OOOOH man it has torque first time i stood on it i did a 1-2-3 gear pileup from a standstill. im a little disappointed with the rpm range though, it seems to peter off about 4500 rpm. it has more low end torque than i can utilize with street tires and i'm thinking about different cam-intake combos.
questions
#1 cam. i know the e303 i a good general purpose cam, but seems wheezy up high compared to the 302. what would be a good cam to extend the rpm about 1200rpm.
#2what would be a better fiting intake, the stealth and the afr heads dont line up worth a crap. vic jr maybee?
#3 valvetrain noise. the 289, 302 and 347 have the same exact sewing machine noise with these heads. the 302 had custom pushrods for dead center tip contact, but the rocker were very close to the retainers, so the 347 got slightly longer stock sized ones. i notice when i first put these heads on my 289 3/4 of the rocker studs were bent so i replaced them, maybee a bent valve too? or could it be the dampner springs. im lost on this i adjusted the rockers till the locknuts were no longer lock nuts.
parts list new
eagle balanced rotating assembly- sir rods, kb pistons, cast steel crank, balancer and flexplate.
750 dp holley
std. oil pump
main girdle
pushrods
gaskets bearing etc
Recycled from 302:
afr 165 heads
stealth intake
e-303 cam
duraspark dizzy
bbk shorties
tci streetfighter c4 and hughes 3000rpm stall
comp magnum roller tip diecast steel rockers
OOOOH man it has torque first time i stood on it i did a 1-2-3 gear pileup from a standstill. im a little disappointed with the rpm range though, it seems to peter off about 4500 rpm. it has more low end torque than i can utilize with street tires and i'm thinking about different cam-intake combos.
questions
#1 cam. i know the e303 i a good general purpose cam, but seems wheezy up high compared to the 302. what would be a good cam to extend the rpm about 1200rpm.
#2what would be a better fiting intake, the stealth and the afr heads dont line up worth a crap. vic jr maybee?
#3 valvetrain noise. the 289, 302 and 347 have the same exact sewing machine noise with these heads. the 302 had custom pushrods for dead center tip contact, but the rocker were very close to the retainers, so the 347 got slightly longer stock sized ones. i notice when i first put these heads on my 289 3/4 of the rocker studs were bent so i replaced them, maybee a bent valve too? or could it be the dampner springs. im lost on this i adjusted the rockers till the locknuts were no longer lock nuts.