Butler Performance Inc. News
May
28
2026
Pontiac Flexplate and Flywheel Balancing- Internal vs External
Pontiac Flywheel Balancing: Stock (External) vs. Internal Balance
When building or restoring a traditional Pontiac V8 (from the 275-horsepower 389 to a high-torque 455), selecting the correct...
Mar
31
2026
Reviving the Rocket- The Olds 403
Reviving the Rocket: The Butler Performance Top End Kit for the Olds 403
The Oldsmobile 403 V8, a staple of the late-70s Trans Am and various GM cruisers, is often remembered more for its...
Mar
31
2026
Oil Isn’t Just a Lubricant
Butler Performance , a legendary name in the Pontiac community, frequently emphasizes that "one size does not fit all" when it comes to oil. Based on their expert builds and industry standards,...
Feb
17
2025
Compression Calculator- 326
326 Compression Calculator
function getResults() {
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Feb
17
2025
Compression Calculator- 455
function getResults() {
var x1 = document.getElementById('BORE_UNITS').selectedIndex;
var boreUnit =...
Feb
17
2025
Compression Calculator- 428
function getResults() {
var x1 = document.getElementById('BORE_UNITS').selectedIndex;
var boreUnit =...
Feb
17
2025
Compression Calculator- 421
function getResults() {
var x1 = document.getElementById('BORE_UNITS').selectedIndex;
var boreUnit =...
Feb
17
2025
Compression Calculator- 350
350 Compression Calculator
function getResults() {
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Feb
17
2025
Compression Calculator- 389
389 Compression Calculator
function getResults() {
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Feb
14
2025
Compression Calculator- 400
function getResults() {
var x1 = document.getElementById('BORE_UNITS').selectedIndex;
var boreUnit =...
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