---
product_id: 38049545
title: ".550\" Lift Z28 RV Valve Springs Set for CHevrolet SBC 400 350 327 307 305 283 Engines"
brand: "enginetech"
price: "€ 131.68"
currency: EUR
in_stock: true
url: https://www.desertcart.fi/products/38049545-550-lift-z28-rv-valve-springs-set-for-chevrolet-sbc
store_origin: FI
region: Finland
---

# 1.260" outside diameter .550" max camshaft lift 318 lbs open spring pressure .550" Lift Z28 RV Valve Springs Set for CHevrolet SBC 400 350 327 307 305 283 Engines

**Brand:** enginetech
**Price:** € 131.68
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate your Chevy’s heart with precision power!

## Quick Answers

- **What is this?** .550" Lift Z28 RV Valve Springs Set for CHevrolet SBC 400 350 327 307 305 283 Engines by enginetech
- **How much does it cost?** € 131.68 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/38049545-550-lift-z28-rv-valve-springs-set-for-chevrolet-sbc)

## Best For

- enginetech enthusiasts

## Why This Product

- Trusted enginetech brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Robust Spring Pressure:** Delivers 318 lbs open pressure for reliable valve control under load.
- • **High-Performance Lift Capacity:** Supports camshaft lifts up to .550", perfect for mild performance upgrades.
- • **Durable Single Spring with Damper:** Engineered for longevity and smooth operation in towing and RV applications.
- • **Ideal for Towing & Mild Camshafts:** Balances power and reliability for everyday drivers and weekend warriors alike.
- • **Precision Fit for Chevy SBC Engines:** Optimized for 1955-1993 small block Chevy models, ensuring seamless compatibility.

## Overview

The .550" Lift Z28 RV Valve Springs Set by Enginetech is engineered for small block Chevy engines from 1955 to 1993. Featuring a 1.260" outside diameter and .785" inside diameter, these springs support camshaft lifts up to .550" with a robust open pressure of 318 lbs. Designed as a single spring with damper, they provide durable, reliable valve control ideal for towing, RV use, and mild camshaft upgrades.

## Description

Outside Diameter: 1.260" Inside Diameter: 0.785" Closed: 114 lbs. @ 1.710" Open: 318 lbs. @1.210" Coil Bind @: 1.160" Spring Type: Single with damper -fits small block chevy engines from 1955-1993. Good for towing, rv, and mild camshaft applications with lifts up to .550".

## Features

- outside dia.: 1.260"
- inside dia.: .785"
- .550" max camshaft lift

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | enginetech |
| Brand | Enginetech |
| Item Weight | 3.23 pounds |
| Package Dimensions | 10.67 x 5.83 x 2.28 inches |
| Item model number | ERV-943 |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | ERV-943 |

## Images

![.550" Lift Z28 RV Valve Springs Set for CHevrolet SBC 400 350 327 307 305 283 Engines - Image 1](https://m.media-amazon.com/images/I/615OKxoIvFL.jpg)

## Questions & Answers

**Q: Just ordered to help out my rv camshaft, can i re use stock retainers/shims or do i need to upgrade those too?**
A: The answer depends on the age of the engine. The shims are reusable if you cannot see grooves cut into them. The retainers are probably fine but the little keepers should be replaced at a minimum. An inexpensive part that if fails it will destroy your engine and a fun weekend out. Also consider the low cost of replacing the parts that you have asked about. This of course is a great time to replace valve seals too. And, Roller tip rockers will almost completely eliminate valve guide ware.

**Q: Are these the same size and specs as the gm ls1 springs? Doing a hotcam swap in my 95 5.7 block and looking for springs for my 193 tbi heads with lift**
A: No I never ordered

**Q: Will these work on 87-95 gm tbi 350 heads 193 cast number?**
A: Yeah I have a 93 Chevy Silverado 5.7 tbi

**Q: will these valve springs work with a stage 3 cam**
A: As long as you not exceeding the max lift of the spring.

## Frequently Bought Together

- .550" Lift Z28 RV Valve Springs Set for CHevrolet SBC 400 350 327 307 305 283 Engines
- SSI SBC BBC SBF FKM Positive Valve Stem Seals - 11/32 X .500 - Set of 16 - NEW
- FEL-PRO SS 5112 Valve Stem Seal Set

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**Shop now:** [https://www.desertcart.fi/products/38049545-550-lift-z28-rv-valve-springs-set-for-chevrolet-sbc](https://www.desertcart.fi/products/38049545-550-lift-z28-rv-valve-springs-set-for-chevrolet-sbc)

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-03-20*