What is the length of a 302 Ford pushrod?
6.250″/6.272″ Hardened Pushrods, Stock Length for SB Ford 5.0/302 GT40, GT40P, HO, Engines w/ Factory Hyd Roller Lifters.
How do I know what length pushrods I need?
The machinist’s ball should measure 0.3125-inch in diameter. Place the ball in the cup and measure the overall length including the ball. Then subtract half the ball diameter (0.1562-inch) to get the overall length. As an example, if the pushrod measures 7.6562 0.1562 = 7.500 inches.
How do you know if your pushrods are too long?
A sure indication that the pushrod is too long is when it takes more than 1 full turn to seat the rocker past the zero-lash point. Though we have successfully run pushrods with more than 1.5 turns, more than 2 turns can actually hold the valve open once the lifter is pumped up with sufficient oil pressure.
Which pushrod is longer exhaust or intake?
Exhaust and Intake Pushrods on G.M. 3.1 and 3.4 engines are different lengths. The intake valve pushrod measure 144 mm (5.75 in) long. Exhaust valve pushrod measure 152.5 mm (6.0 in) long.
How long are BBC push rods?
3/8″ Diameter, 8.280″ Intake / 9.252″ Exhaust Length (Standard length, Standard Block), . 080″ Wall, 5/16″ Oil through welded ball ends. Must be used with guide plates.
How important is pushrod length?
An ideal pushrod length will minimize the distance that the valve trip travels across the valve tip. Pushrods that are either too long or too short only increase this distance. A too-short pushrod positions the rocker tip too far to the intake (inboard) side of the valve tip.
What is the length of big block Chevy pushrods?
The big block Chevy will need two different checking pushrods—the intake version accommodates lengths from 7.80 to 8.80 inches.
How big can you bore a Ford 302?
With an unfinished bore size of 4.120″, Ford Performance BOSS 302 Big Bore blocks will support engine sizes up to 363 cubic inches. The Ford Performance BOSS block capability has been proven around the world, both on the track and on the street.
How hot should a Ford 302 run?
Type of radiator (aluminum or brass,) temp thermostat, type of water pump, where you live, when does it get hot (stop and go traffic, freeway speed, at idle, etc. For a ballpark answer though, a fairly stock 302 probably should stay in the 180-210 degree range.
How to measure push rod length?
jays90foxbody. Few months back I swapped my heads and rockers went from E7s with 1.7 rockers to trick flows with 1.6 rockers.
How to measure pushrod length and optimize valvetrain geometry?
Block deck height