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my 77 427 5 speed out of the dust

39K views 147 replies 26 participants last post by  77-427-5sp 
#1 ·

7-8 years ago

last week
 
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2
#7 ·
wheels this will not work

test fit a wheel vintiques 15-8 396ss wheel
the stock pontiac 15-7 rim fits over the rear disc brakes fine
the wv wheels hit on the inside i was thinking of using those or series 29 rally wheels from them but i think those would hit also

pic looks funny car is on jackstands
 
#10 ·
Very Nice!!

i have a 79 that had a 454 and a Muncie in it. the muncie is still there but I blew up the 454 last spring. 350 roller in there now until the 454 gets rebuilt.

anyways, if you want a set of header i have a set off of my 79 they are black flowtechs. PM if your interested, not looking for a lot of cash for em.

keep up the good work, and keep us posted. Big Block 4th gens rock!
 
#16 ·
i have never seen them on a 4th gen nova before but i liked the look
so i took a chance and bought them , i like the look
the grill looks better in the pic then in real life , the lenses have some cracks and the chromes peeling , but this is a car to be driven it will will never be a show car
 
#17 · (Edited)
update

well got something done for a change

heater core with big block cover all in
. a 68 bb Camaro Heater core is P/N 399055.(I belive thats Ready-Aire) thanks ls6rally





test fit drivers seat before welding new mounts in
found that i either had to get a longer arm or move the shifter to the rear position
i chose to move the shifter
and i got the trans on the mounts



next week hopefully i get a chance to pull the power steering box out of my parts car , since i removed the manual to put friends s-10 blazer drag truck

 
#18 ·
cam quest 6

cam quest 6 from comp cams
is great tool
ever wonder how when you call comp they seem to know the right cam well they have a program for that called cam quest 6
at any rate it great helper for picking out cams if you put in a bad choice it will tell you

in may case i was looking for a mild low rpm engine with some torque
it gave about 10 choices and i picked one out of those that i thought would work best
here is what i told it

lifter type hyd roller
carb 750
intended usage auto hp street choppy to mild idle
short block Chevy 427 bore 427 stroke 3.760
cylinder heads stock 2.065/1.72 valve
compression ratio 8.2
exhaust manifold with mufflers

cam i used is a xr270hr

according to cam quest power rating


peak torque is 455 at 3500 rpm
peak hp is 375 at 5000 rpm

now i could easily increased the power by upping the compression ratio
using these same specs but changing to 9.5 comp
would bumped it to
peak torque 485 at 3500
and peak hp 406. at 5000

and of course if i did the compression and did headers not the manifolds

it bumps it to 530 torq
and 461 hp
but using this combo it the low rpm hp is horrible in comparison
to the setup i have

i chose to lose almost 100 hp at 5000 to get
to gain a extra 100 hp at 1000 rpm

and be able to burn the cheep gas as i cruise along in fifth gear
 
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