ideas on ford 331

[powerhouse]

what lifters/springs did you use w that camshaft?

Morel tiebar lifters that cam in the cam kit....its a howards cam and the stock afr speings set up at 160 seat 410 open

did the afr heads have 11/32 valves of were they the 8mm version stems?

8mm...they were the newest 185 renegade heads

[Walter R. Malik]

cutomer has 331 ford, (302 based, 3.250" crank instead). currently has 234/238 @.050 hyd roller, w .591/.570 on a 108. springs are 145# seat, 385# open, factory motorsport lifters, scorpion 1.6 rockers, edelbrock 190 perf rpm heads, 2.02/1.6, 10-1 compression, weiand stealth intake w portmatch only, quickfuel 750 carb. Honestly the edelbrock heads look decent to start with. Car is currently manual transcT5 w 3.73 gear, but may change down the road. I have no idea what current power is, I would guess 415-ish? What besides headwork could pick this combination up....and still be regularly street driven without issues? Just finished porting the heads, am installing 2.05 valves, and am considering the short travel lifters and another 50-75 lbs more open pressure w another hyd roller cam. any ideas to increase power/efficiency?
ed perf rpm 190.jpged perf rpm 190 2.jpged perf rpm 190 3.jpged perf rpm 190 4.jpged perf rpm 190 5.jpged perf rpm 190 6.jpg

What objective is this engine supposed to satisfy...?
That differentiation alone could change many of the parameters of this engine build depending upon what priorities which are attempting to be fulfilled.

[rewguy]

cutomer has 331 ford, (302 based, 3.250" crank instead). currently has 234/238 @.050 hyd roller, w .591/.570 on a 108. springs are 145# seat, 385# open, factory motorsport lifters, scorpion 1.6 rockers, edelbrock 190 perf rpm heads, 2.02/1.6, 10-1 compression, weiand stealth intake w portmatch only, quickfuel 750 carb. Honestly the edelbrock heads look decent to start with. Car is currently manual transcT5 w 3.73 gear, but may change down the road. I have no idea what current power is, I would guess 415-ish? What besides headwork could pick this combination up....and still be regularly street driven without issues? Just finished porting the heads, am installing 2.05 valves, and am considering the short travel lifters and another 50-75 lbs more open pressure w another hyd roller cam. any ideas to increase power/efficiency?
ed perf rpm 190.jpged perf rpm 190 2.jpged perf rpm 190 3.jpged perf rpm 190 4.jpged perf rpm 190 5.jpged perf rpm 190 6.jpg

What objective is this engine supposed to satisfy...?
That differentiation alone could change many of the parameters of this engine build depending upon what priorities which are attempting to be fulfilled.

As long as it can go say, 30-40,000 miles in between rebuilds...….I want to make as much power as I can with thee heads and some sort of maintenance free hydraulic roller valvetrain. Maintenance free meaning......lasts at least 30,000 miles until freshened.

[Walter R. Malik]

cutomer has 331 ford, (302 based, 3.250" crank instead). currently has 234/238 @.050 hyd roller, w .591/.570 on a 108. springs are 145# seat, 385# open, factory motorsport lifters, scorpion 1.6 rockers, edelbrock 190 perf rpm heads, 2.02/1.6, 10-1 compression, weiand stealth intake w portmatch only, quickfuel 750 carb. Honestly the edelbrock heads look decent to start with. Car is currently manual transcT5 w 3.73 gear, but may change down the road. I have no idea what current power is, I would guess 415-ish? What besides headwork could pick this combination up....and still be regularly street driven without issues? Just finished porting the heads, am installing 2.05 valves, and am considering the short travel lifters and another 50-75 lbs more open pressure w another hyd roller cam. any ideas to increase power/efficiency?
ed perf rpm 190.jpged perf rpm 190 2.jpged perf rpm 190 3.jpged perf rpm 190 4.jpged perf rpm 190 5.jpged perf rpm 190 6.jpg

What objective is this engine supposed to satisfy...?
That differentiation alone could change many of the parameters of this engine build depending upon what priorities which are attempting to be fulfilled.

As long as it can go say, 30-40,000 miles in between rebuilds...….I want to make as much power as I can with thee heads and some sort of maintenance free hydraulic roller valvetrain. Maintenance free meaning......lasts at least 30,000 miles until freshened.

In that case,
My opinion would be to use a Trick Flow single plane intake manifold with a milder cam, about 223/232 with near .575" valve lift.

[GARY C]

Here is a dyno sheet from a 331 SBC, 9.5:1, Edelbrock performer intake, 750 cab, Bullet solid roller 242/248 on a 109 (not my choice) with a set of 180 Pro Topline heads I did. We all thought it would be a good engine for a 1" spacer due to the low intake... We were wrong! It lost 25 HP. Bottom line is, If the customer is not willing to dyno before and after then he may end up spending more for less and never know it. On a side note the engine dynoed before this one was a ported DBL Hump headed 12.1 solid roller cam race engine that only made 25 more horse than the street engine we did.

[rewguy]

What objective is this engine supposed to satisfy...?
That differentiation alone could change many of the parameters of this engine build depending upon what priorities which are attempting to be fulfilled.

As long as it can go say, 30-40,000 miles in between rebuilds...….I want to make as much power as I can with thee heads and some sort of maintenance free hydraulic roller valvetrain. Maintenance free meaning......lasts at least 30,000 miles until freshened.

In that case,
My opinion would be to use a Trick Flow single plane intake manifold with a milder cam, about 223/232 with near .575" valve lift.

Are the trick flow single plane intakes superior to the Vic jr?

[Walter R. Malik]

As long as it can go say, 30-40,000 miles in between rebuilds...….I want to make as much power as I can with thee heads and some sort of maintenance free hydraulic roller valvetrain. Maintenance free meaning......lasts at least 30,000 miles until freshened.

In that case,
My opinion would be to use a Trick Flow single plane intake manifold with a milder cam, about 223/232 with near .575" valve lift.

Are the trick flow single plane intakes superior to the Vic jr?

In most cases they are and others they are not.